T+E

Guests and staff of a stately hotel find themselves seeking escape from a variety of spirits; the team learns of a history of destructive fires on the property; a forensic sketch artist is enlisted to help identify a mysterious "woman in white.".

Stories of escape that defy explanation; Harry Houdini pulls off escape acts; an attempted prison break from Alcatraz Federal Penitentiary; one man receives guidance that allows him to escape the South Tower of the World Trade Center on 9/11.

Part 2/2. Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counter intelligence officer Richard Doty to feed Bennewitz lies; questioning whether Doty himself is a pawn in an even bigger scheme.

Kelly and Steve look into the 2007 murder of a single father who was gunned down by a sharpshooter with a high-powered rifle; state-of-the-art digital forensics may help poke a hole in the suspect's alibi.

Part 2/2. Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

Reconstruct the details of Micki's final hours on her romance-rekindling cruise with ex Lonnie. See why his calm demeanour and quick escape raises red flags for investigators, who soon find a web of financing.

In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counter intelligence officer Richard Doty to feed Bennewitz lies; questioning whether Doty himself is a pawn in an even bigger scheme.

A policeman discovers an oval-shaped object without windows or doors; a woman spots an aura of light surrounding a small tree.

A 10,000-gallon water tank is found to be empty after an object is spotted hovering over it; amaranth plants wilt after a saucer-shaped craft hovers above them.

The team investigates paranormal activity linked to an overwhelming number of natural disasters, contacts spirits in a hotel built atop a hospital, explores an eerie B & B, and finds troubled souls in America's most haunted city.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

Guests and staff of a stately hotel find themselves seeking escape from a variety of spirits; the team learns of a history of destructive fires on the property; a forensic sketch artist is enlisted to help identify a mysterious "woman in white.".

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

The team investigates paranormal activity linked to an overwhelming number of natural disasters, contacts spirits in a hotel built atop a hospital, explores an eerie B & B, and finds troubled souls in America's most haunted city.

A policeman discovers an oval-shaped object without windows or doors; a woman spots an aura of light surrounding a small tree.

A 10,000-gallon water tank is found to be empty after an object is spotted hovering over it; amaranth plants wilt after a saucer-shaped craft hovers above them.

Investigating dark echoes of the past that remain long after an individual has died; looking inside a haunted home on the Atlantic coast, a spirit-filled former asylum in Missouri; a Victorian house in Ontario that's occupied by a phantom.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

A woman's young nephew is attacked by something horrific; a man takes a job at a restaurant with a resident ghost; a woman is stalked by an obsessive spirit with a violent streak.

A correctional officer watches the Grim Reaper collect a dead prisoner's soul; a ghost attaches itself to an emergency technician; an elderly man is saved by his late wife.

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

The ghosts treat Alison to a wonderfully festive Christmas present and Pat faces his past.

An Urban explorer is terrified by a graveyard séance in Peru; in Scarborough, a woman is shocked by a poltergeist throwing noodles in her store; it's all unexplained and caught on camera.

Kelly and Steve look into the 2007 murder of a single father who was gunned down by a sharpshooter with a high-powered rifle; state-of-the-art digital forensics may help poke a hole in the suspect's alibi.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

When a person's day job involves the oversight of missile silos, nuclear facilities or a military base, the last complication they want to deal with is a close encounter with a UFO; here, an already frightening phenomenon turns positively chilling.

In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counter intelligence officer Richard Doty to feed Bennewitz lies; questioning whether Doty himself is a pawn in an even bigger scheme.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

An otherworldly figure walks across a Pennsylvania woman's front lawn; a haunted doll gets physical with its visitors in England; animals are frozen in time around the world.

The ghosts treat Alison to a wonderfully festive Christmas present and Pat faces his past.

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

The team emabarks on an action-packed investigation at the home of actor Simon Gregson in Wilmslow, Cheshire.

An otherworldly figure walks across a Pennsylvania woman's front lawn; a haunted doll gets physical with its visitors in England; animals are frozen in time around the world.

The ghosts treat Alison to a wonderfully festive Christmas present and Pat faces his past.

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

Part 2/2. Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

The ghosts treat Alison to a wonderfully festive Christmas present and Pat faces his past.

In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counter intelligence officer Richard Doty to feed Bennewitz lies; questioning whether Doty himself is a pawn in an even bigger scheme.

George gets locked in a spiritual battle to expel demons from a client's home; Richard investigates mysterious and terrifying events in a Colorado museum; Jay goes toe to toe with ancient native spirits in Arizona.

Visiting spirits that remain tied to the places that meant the world to them; feeling eerie energy in a historic Missouri mansion; facing a spectral sea captain in Nova Scotia; discovering a well of supernatural energy in a northern California hotel.

Marie recalls her experiences with sounds of crying, paranormal darts and a ghostly figure in her new home.

A soldier unknowingly awakens an ancient evil while stationed in Iraq.

After antiques collectors bring a certain piano into their home, Lorraine Warren must lend her expertise to dismantle and destroy the instrument.

Paid programming.

Ed Gein murders at least two women and desecrates the graves of dozens more to feed his bizarre fetishes; the so-called Butcher of Plainfield serves as the inspiration for Norman Bates in "Psycho" and Buffalo Bill in "Silence of the Lambs.".

A woman falls in love with the ghost of a 300-year-old pirate; a young man continues to be surrounded by meddling spirits for nearly a decade; two men capture footage of UFOs.

A father and son record evidence of a monster in a lake in Canada; a doorbell security camera captures fiery orbs falling from the skies above California; an investigative team is accosted by the spirits of a murdered family in Nevada.

Nurse Jeanine Hannah is employed to care for 68-year-old wheelchair-bound Margaret Bradley. After Margaret dies, Margaret's daughter finds her death suspicious and police uncover even more troubling episodes from this nurse's checkered past.

Find out why devoted animal rescuer Shannon is helping everyone but herself. See her terrified family try to convince her that a life of abuse, assault, and addiction is a dead end for her and her relationship with her three-year-old daughter.

An otherworldly figure walks across a Pennsylvania woman's front lawn; a haunted doll gets physical with its visitors in England; animals are frozen in time around the world.

Elvis' music will live on forever.

With the B&B gone, Mike anxiously strives to fix their finances, but it's April Fool's Day and a distracted Alison is out for revenge; the couple receives big news.

A father and son record evidence of a monster in a lake in Canada; a doorbell security camera captures fiery orbs falling from the skies above California; an investigative team is accosted by the spirits of a murdered family in Nevada.

A woman falls in love with the ghost of a 300-year-old pirate; a young man continues to be surrounded by meddling spirits for nearly a decade; two men capture footage of UFOs.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

Follows police investigators and forensic specialists across Australia as they battle the clock to find lost loved ones and bring them home.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

Follows police investigators and forensic specialists across Australia as they battle the clock to find lost loved ones and bring them home.

Discover why the perfect life of Scott Rogers, a charismatic pastor in Baton Rouge, Louisiana, was just smoke and mirrors. Untangle a web of lies, deceptions, and heinous crimes that left two people dead and tore his family and community apart.

A woman falls in love with the ghost of a 300-year-old pirate; a young man continues to be surrounded by meddling spirits for nearly a decade; two men capture footage of UFOs.

A father and son record evidence of a monster in a lake in Canada; a doorbell security camera captures fiery orbs falling from the skies above California; an investigative team is accosted by the spirits of a murdered family in Nevada.

Find out why devoted animal rescuer Shannon is helping everyone but herself. See her terrified family try to convince her that a life of abuse, assault, and addiction is a dead end for her and her relationship with her three-year-old daughter.

A girl's father doesn't believe she can see ghosts; a boy's family is accepting of his ability to see spirits.

A neighborhood is plagued with ghostly sightings and strange sounds.

A star lands in France, emitting solid beams of light; Belgian police officers follow a triangular craft that shoots out that are red balls of light.

A Canadian farmer sees five identical bun-shaped objects; thousands report seeing a large triangular-shaped object for a 3-year period over New York's Hudson Valley.

When a person's day job involves the oversight of missile silos, nuclear facilities or a military base, the last complication they want to deal with is a close encounter with a UFO; here, an already frightening phenomenon turns positively chilling.

Examine strange relics forgotten by time; visit a perturbing circle of stone in the Golan Heights; a mountain of headless statues in Turkey; a castle left to crumble in the Saudi Arabian desert; a time-worn secret in the wilds of Peru.

The PRS travels to Las Vegas to investigate a 14-year-old medium who claims to be visited by a spirit called "Emily.".

Paid programming.

A down-and-out waitress questions her choices.

A poltergeist wreaks havoc on a little girl's birthday party; paranormal investigators unwittingly trap an evil spirit inside a doll; a man captures chilling footage of an entity walking through walls.

A man is possessed by an evil entity during a séance in York, England; an Oregon woman is stunned by a glowing UFO; a ghost hunter is attacked by a poltergeist in a haunted nursing home.

A nurse, who is one of the most trusted in her hospital in West Yorkshire, UK, is killing her patients on the night shift.

Elliot overcame a traumatic childhood and moved to Las Vegas to pursue his dream of becoming a chef, but the rampant drug culture in restaurant kitchens along with the sudden death of his brother sent Elliot reeling.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

Follows police investigators and forensic specialists across Australia as they battle the clock to find lost loved ones and bring them home.

A man is possessed by an evil entity during a séance in York, England; an Oregon woman is stunned by a glowing UFO; a ghost hunter is attacked by a poltergeist in a haunted nursing home.

A poltergeist wreaks havoc on a little girl's birthday party; paranormal investigators unwittingly trap an evil spirit inside a doll; a man captures chilling footage of an entity walking through walls.

Millions of people around the world claim to have had an encounter with a creature unlike any recognized by mainstream science such as the Mothman, Chupacabra, and Mongolian Death Worm.

In 1980, a UFO detected on military radar, lands near crucial NATO bases; a group of military personnel claim to have seen a shiny metallic object with coloured lights and hieroglyphic inscriptions.

Getting insight into the last moments of England's King Richard III; deciphering a manuscript hiding taboo 15th-century knowledge; spotting indications of human sacrifice in Scotland; inspecting silver coins tied to turbulent times in Eastern Europe.

Millions of people around the world claim to have had an encounter with a creature unlike any recognized by mainstream science such as the Mothman, Chupacabra, and Mongolian Death Worm.

In 1980, a UFO detected on military radar, lands near crucial NATO bases; a group of military personnel claim to have seen a shiny metallic object with coloured lights and hieroglyphic inscriptions.

Getting insight into the last moments of England's King Richard III; deciphering a manuscript hiding taboo 15th-century knowledge; spotting indications of human sacrifice in Scotland; inspecting silver coins tied to turbulent times in Eastern Europe.

Looking beneath the veneer of money, connections and fast cars that surrounded Tennessee couple Joe and Tina Coronna; learning how secret lovers, shady investments and threats to reveal Joe's financial sins added up to the perfect recipe for murder.

A poltergeist wreaks havoc on a little girl's birthday party; paranormal investigators unwittingly trap an evil spirit inside a doll; a man captures chilling footage of an entity walking through walls.

A man is possessed by an evil entity during a séance in York, England; an Oregon woman is stunned by a glowing UFO; a ghost hunter is attacked by a poltergeist in a haunted nursing home.

Elliot overcame a traumatic childhood and moved to Las Vegas to pursue his dream of becoming a chef, but the rampant drug culture in restaurant kitchens along with the sudden death of his brother sent Elliot reeling.

George helps his sister with a dark and malevolent spirit; a group of teens mistakenly unleash a demon; an investigator spends the night in a church rectory with a dark past.

Standing up to spirits that are hell-bent on punishing the living; pondering the nature of a nighttime intruder, facing off with a vengeful ghost who appears to a nurse's aide, and chasing an aggressive entity targeting a switchboard operator.

Sailing to Bell Island, Newfoundland, where the investigators reach out to the ghosts left by a devastating Nazi U-boat attack during WW II; descending into darkness as the trio reveals a group of ghostly miners trapped underground for 80 years.

Ryan and his team travel to Point Pleasant, W.Va., to investigate the mysterious Mothman.

Team leader Ryan Buell of the Paranormal Research Society investigates after a mother calls, who is worried about her son.

Paranormal entities go to great lengths to trap their prey; a shape-shifting creature stalks a young girl; a boy fears he has no one to turn to when he begins to see shadow people; and two friends are terrorized by an evil spirit.

A New Orleans socialite wrestles with her past.

A man gravely regrets unleashing a demonic entity from a sealed box; a pub seems to have a resident ghost; a pastor is on a mission to exorcise as many demons as possible.

Two men stumble upon the apparition of a ghostly bride in a haunted church; drone footage captures the elusive Ohio Grassman; frightened ferry passengers witness an alien invasion at sunset.

Hospital orderly Donald Harvey is seen as a good worker, but when he confesses to multiple murders, no one initially believes him; he goes on to become one of America's most prolific serial killers.

After a terrifying burn accident as a child, Jayden grows up hoping to become a firefighter and fight California's notorious forest fires; after a series of tragic events, 20-year-old Jayden now smokes dangerous amounts of fentanyl.

In 1980, a UFO detected on military radar, lands near crucial NATO bases; a group of military personnel claim to have seen a shiny metallic object with coloured lights and hieroglyphic inscriptions.

Millions of people around the world claim to have had an encounter with a creature unlike any recognized by mainstream science such as the Mothman, Chupacabra, and Mongolian Death Worm.

Two men stumble upon the apparition of a ghostly bride in a haunted church; drone footage captures the elusive Ohio Grassman; frightened ferry passengers witness an alien invasion at sunset.

A man gravely regrets unleashing a demonic entity from a sealed box; a pub seems to have a resident ghost; a pastor is on a mission to exorcise as many demons as possible.

Uncover signs of strangulation that implicate Lonnie after Micki's lifeless body washes up in Italy. Follow a trail of financial manoeuvres Lonnie made ahead of the couple's deadly cruise.

For the 100th case, the 2007 murder of a popular college student who was stabbed to death in her bed; help is needed from forensic pathologist, digital forensics expert and DNA lab to solve the case.

Uncover signs of strangulation that implicate Lonnie after Micki's lifeless body washes up in Italy. Follow a trail of financial manoeuvres Lonnie made ahead of the couple's deadly cruise.

Guy and Maurice work to free Janet from the grip of the poltergeist as the case reaches its conclusion.

Examining the evil acts that Jennifer Sybert, a hairdresser in Florida, tried to keep hidden from her colleague, top stylist Joleen Cummings; an entanglement with Joleen's ex blows the lid off Jennifer's criminal past, and leads to a ghastly slaying.

A man gravely regrets unleashing a demonic entity from a sealed box; a pub seems to have a resident ghost; a pastor is on a mission to exorcise as many demons as possible.

Two men stumble upon the apparition of a ghostly bride in a haunted church; drone footage captures the elusive Ohio Grassman; frightened ferry passengers witness an alien invasion at sunset.

After a terrifying burn accident as a child, Jayden grows up hoping to become a firefighter and fight California's notorious forest fires; after a series of tragic events, 20-year-old Jayden now smokes dangerous amounts of fentanyl.

Treading carefully in places where ghosts revisit the scenes of their crimes; confronting vengeful jailhouse spirits in a Missouri home; a malevolent ex-member of the Manson Family in California; a cruel biker in a Salt Lake City residence.

Marie recalls her experiences with sounds of crying, paranormal darts and a ghostly figure in her new home.

Childhood friends Ashley Taylor and Kevin Sweat reconnect as adults; Ashley's strange pre-wedding disappearance sheds light on Kevin's disturbing past and his connection to a string of unsolved murders.

Paid programming.

Ryan and the PRS investigate the haunting of a woman and her dog in Waterboro, Maine.

A Homeland Security officer is left shaken by an encounter with an otherworldly intruder inside an empty government building; a mysterious soldier saves a hospital corpsman's life during a hurricane; paramedics respond to a ghostly 911 call.

A disgruntled fisherman makes the catch of a lifetime.

A former skeptic endures 10 years of paranormal phenomena in his home; a man believes an angry spirit is punishing him for filming in an abandoned asylum; a young woman finds true love -- with her doll.

Mysterious lights hover in the skies above Stonehenge on the eve of the summer solstice; a woman witnesses a soul leaving a dead deer's body; a Florida man finds grisly proof of a violent extraterrestrial attack.

Nurse Charles Cullen said he hated to see people suffer, but he becomes the most prolific serial killer in New Jersey history; he confesses to murdering up to forty patients, but some believe there were as many as 300.

Jesse grows up gender fluid in a household rife with addiction, trauma and dysfunction; after nearly losing his mother to drugs, Jesse spirals into an addiction of his own and now lives on the streets.

Meet Julian, who tells Danny about the towering shadow figure that has been terrorizing him; delve into one of the scariest cases Danny has investigated and find out if this apparition is supernatural or something more sinister.

Luton Police Station uses fixed rig and handheld cameras to provide insight into the day-to-day challenges faced by staff and officers.

Mysterious lights hover in the skies above Stonehenge on the eve of the summer solstice; a woman witnesses a soul leaving a dead deer's body; a Florida man finds grisly proof of a violent extraterrestrial attack.

A former skeptic endures 10 years of paranormal phenomena in his home; a man believes an angry spirit is punishing him for filming in an abandoned asylum; a young woman finds true love -- with her doll.

Pamela's family hopes an intervention will save her from her addiction after being exposed to her father's drug addiction.

A strange figure caught on a security cam; a statue that appears to be crying real tears; a smartphone app said to allow people to control reality.

Recent video of a large, hairy creature and casts of its footprints; a man dodges rush hour traffic with seemingly superhuman reflexes; a woman escapes from her sinking vehicle without opening the doors or windows.

Jennifer teams with journalist Sarah Lyons to investigate the mystery of the Salem witch trials.

Pamela's family hopes an intervention will save her from her addiction after being exposed to her father's drug addiction.

A strange figure caught on a security cam; a statue that appears to be crying real tears; a smartphone app said to allow people to control reality.

Recent video of a large, hairy creature and casts of its footprints; a man dodges rush hour traffic with seemingly superhuman reflexes; a woman escapes from her sinking vehicle without opening the doors or windows.

Jennifer teams with journalist Sarah Lyons to investigate the mystery of the Salem witch trials.

With all the secrets, lies, greed, and infidelity, Ernie and Charlene Scherer's American-dream life was not exactly what it seemed like; a look into how the exposure of their dangerous double life led to one last fatal gamble.

A former skeptic endures 10 years of paranormal phenomena in his home; a man believes an angry spirit is punishing him for filming in an abandoned asylum; a young woman finds true love -- with her doll.

Mysterious lights hover in the skies above Stonehenge on the eve of the summer solstice; a woman witnesses a soul leaving a dead deer's body; a Florida man finds grisly proof of a violent extraterrestrial attack.

Jesse grows up gender fluid in a household rife with addiction, trauma and dysfunction; after nearly losing his mother to drugs, Jesse spirals into an addiction of his own and now lives on the streets.

The team investigates the 200-year-old Essex home of dancer and choreographer Louie Spence, who's been experiencing strange smells and sinister shadows.

Interior designer Laurence Llewelyn-Bowen lives in a 17th century manor house in the Cotswolds that has a history of hauntings; there, a spirit has a murderous story to tell.

The team investigates the home of "Geordie Shore" star Marnie Simpson in Flitwick, Bedfordshire; Marnie is convinced that she's haunted by something that followed her home.

Mysterious hovering lights haunt a couple along the highway; an explorer investigates Minnesota's most haunted cemetery; a disembodied voice gives a young boy the shock of his life.

A family visiting a museum in England spots something terrifying; a cryptid sighting stuns two business partners in New Jersey; a notoriously haunted hotel in Arkansas lives up to its reputation.

A man in England is startled by a spiritual manifestation in his home; a childlike specter crashes a dinner party in Colombia; a Canadian couple spots fire-like UFOs hovering above a river.

The Perry-Mansfield Performing Arts Camp deep in northern Colorado forestland is plagued by reports of unsettling paranormal encounters; in the first professional investigation of the site, Grant sends the team ahead to begin without him.

The new owners of Waverly Hills Sanatorium near Louisville, Ky., receive reports of unsettling paranormal claims, including blood-curdling screams and unexplained sounds, from visitors.

Fort Stanton in New Mexico is established in the 19th century as a military post, then converted into a tuberculosis hospital; reports of paranormal activity date back to the 1940s, but a recent uptick in claims causes concerns about staff safety.

In Jodie Kidd's 15th-century pub, a violent spirit flings bottles at staff and rearranges the furniture; a look at an irate poltergeist; two clashing energies in the former model's cozy watering hole.

Tallying up the unsettling occurrences in reality star Chloe Ferry's isolated mansion, where things go missing and windows mysteriously shatter in the dead of night; learning about a terrifying shadow man and the home's link to the Geordie Ripper.

Checking out opera singer Russell Watson's idyllic farm, where an invisible visitor plays the piano and scares everyone; tracking down a cannibal killer with the team, who have to act fast to send this evil spirit back to the dark side.

Visiting spirits that remain tied to the places that meant the world to them; feeling eerie energy in a historic Missouri mansion; facing a spectral sea captain in Nova Scotia; discovering a well of supernatural energy in a northern California hotel.

Treading carefully in places where ghosts revisit the scenes of their crimes; confronting vengeful jailhouse spirits in a Missouri home; a malevolent ex-member of the Manson Family in California; a cruel biker in a Salt Lake City residence.

Sailing to Bell Island, Newfoundland, where the investigators reach out to the ghosts left by a devastating Nazi U-boat attack during WW II; descending into darkness as the trio reveals a group of ghostly miners trapped underground for 80 years.

Exploring Strathroy, an Ontario community with a dark past plagued by fires, train wrecks and serial killers; confronting the paranormal energy that engulfs the town and makes its residents the uneasy neighbours of poltergeists and phantoms.

A house that narrowly dodges the path of a tornado; rain that falls from the sky like blood; lightning that follows into the home.

Sailing to Bell Island, Newfoundland, where the investigators reach out to the ghosts left by a devastating Nazi U-boat attack during WW II; descending into darkness as the trio reveals a group of ghostly miners trapped underground for 80 years.

Getting insight into the last moments of England's King Richard III; deciphering a manuscript hiding taboo 15th-century knowledge; spotting indications of human sacrifice in Scotland; inspecting silver coins tied to turbulent times in Eastern Europe.