Story The biggest machines and their smallest counterparts; Airbus A380 and microjet; Boss Hoss 425-horsepower bike and 18-inch tall pocket bike; world's smallest production car. 2026-05-16 Some machines built for sheer spectacle. 2026-05-16 Excavators; machines lug NASA rockets to the launch pad; cruise ship; machine to create a fusion reaction. 2026-05-16 Episode takes the "best of" Modern Marvels and give the mega top 10 countdown; on this edition: speed; it's a pure adrenaline rush as it shows the fastest marvels featured down to the speediest of all. 2026-05-16 This countdown embarks on an odyssey featuring the strongest of the strong; whether they lift, pull, hold or haul, every heavy-duty titan among the top ten choices has the muscle to reshape the world. 2026-05-16 Testing the breaking points of vehicles and crash test dummies; firing rounds at bulletproof glass; breaching a safe; the breaking points of steel and concrete. 2026-05-16 A countdown of the top gizmos and gadgets featured on "Modern Marvels," from golden oldies to newfangled thingamabobs, including an electronic doodad that was once considered a threat to national security. 2026-05-16 A gooey slime that could be a terrorist's worst nightmare; an exacting art form requiring the help of millions of ravenous beetles; a devise so strange and destructive that its inventor allegedly destroyed it to avert a catastrophe. 2026-05-16 The biggest machines and their smallest counterparts; Airbus A380 and microjet; Boss Hoss 425-horsepower bike and 18-inch tall pocket bike; world's smallest production car. 2026-05-16 Some machines built for sheer spectacle. 2026-05-16 Excavators; machines lug NASA rockets to the launch pad; cruise ship; machine to create a fusion reaction. 2026-05-16 Episode takes the "best of" Modern Marvels and give the mega top 10 countdown; on this edition: speed; it's a pure adrenaline rush as it shows the fastest marvels featured down to the speediest of all. 2026-05-16 Jeff Mudgett seeks to prove his ancestor, U.S. serial killer H.H. Holmes, was also London's infamous murderer, Jack the Ripper; Mudgett teams up with ex-CIA analyst Amaryllis Fox to prove this theory, using modern science and methodologies. 2026-05-16 While revealing the gruesome details of the murders committed in 1888 London by Jack the Ripper, Jeff and Amaryllis challenge Ripper myths in the hunt for a link to H.H. Holmes. 2026-05-16 The Jack the Ripper letters contain an unexpected link to H.H. Holmes; Scotland Yard's list of credible suspects holds a key detail about the manhunt; eyewitness accounts reveal the face of a killer. 2026-05-16 An investigation into the gruesome details of Holmes' infamous Murder Castle leads to the discovery that he may have been killing victims all over Chicago and beyond; a report says the Ripper may have killed in the United States. 2026-05-16 Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holme's killing ground. 2026-05-16 H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper. 2026-05-16 A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death. 2026-05-16 H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution. 2026-05-16 Jeff Mudgett seeks to prove his ancestor, U.S. serial killer H.H. Holmes, was also London's infamous murderer, Jack the Ripper; Mudgett teams up with ex-CIA analyst Amaryllis Fox to prove this theory, using modern science and methodologies. 2026-05-16 While revealing the gruesome details of the murders committed in 1888 London by Jack the Ripper, Jeff and Amaryllis challenge Ripper myths in the hunt for a link to H.H. Holmes. 2026-05-16 The Jack the Ripper letters contain an unexpected link to H.H. Holmes; Scotland Yard's list of credible suspects holds a key detail about the manhunt; eyewitness accounts reveal the face of a killer. 2026-05-16 An investigation into the gruesome details of Holmes' infamous Murder Castle leads to the discovery that he may have been killing victims all over Chicago and beyond; a report says the Ripper may have killed in the United States. 2026-05-16 Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holme's killing ground. 2026-05-17 H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper. 2026-05-17 A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death. 2026-05-17 H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution. 2026-05-17 Jeff Mudgett seeks to prove his ancestor, U.S. serial killer H.H. Holmes, was also London's infamous murderer, Jack the Ripper; Mudgett teams up with ex-CIA analyst Amaryllis Fox to prove this theory, using modern science and methodologies. 2026-05-17 While revealing the gruesome details of the murders committed in 1888 London by Jack the Ripper, Jeff and Amaryllis challenge Ripper myths in the hunt for a link to H.H. Holmes. 2026-05-17 The Jack the Ripper letters contain an unexpected link to H.H. Holmes; Scotland Yard's list of credible suspects holds a key detail about the manhunt; eyewitness accounts reveal the face of a killer. 2026-05-17 An investigation into the gruesome details of Holmes' infamous Murder Castle leads to the discovery that he may have been killing victims all over Chicago and beyond; a report says the Ripper may have killed in the United States. 2026-05-17 Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holmes's killing ground. 2026-05-17 H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper. 2026-05-17 A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death. 2026-05-17 H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution. 2026-05-17 Pius XII assumes the papacy on the eve of World War II. 2026-05-17 A German rocket scientist and former astronaut and U.S. Senator from Ohio are profiled. 2026-05-17 Nate heads to the Cincinnati Museum of Art for a look at the traditional armor of the samurai warrior and how it relates to the fashion of world renowned designer Issaye Mikaye; Nate examines the history of manga and the talent of Tezuka Osamu. 2026-05-17 Astronauts adapt to the challenges of space living-- the unique environment, tasteless food and canned air's scent; exploring how coping mechanisms are crucial for life and work in space. 2026-05-17 Featuring lessons that guide teenagers to learn about ways to help the environment. 2026-05-17 With the advent and spread of airplanes and automobiles in the beginning of the 20th century an idea emerged that a marriage of the two would create the ultimate travel miracle. 2026-05-17 Under duress American Iva Toguri broadcasts Japanese propaganda during World War II. 2026-05-17 A profile of Eisenhower recalls his journey from Abilene, Kan., to become the Supreme Allied Commander during World War II and later the 34th president of the United States. 2026-05-17 The turbulent life and times of the World War II leader who fought toe-to-toe with the Japanese Navy in the South Pacific; recalling his carrier raids, the victory at Leyte Gulf, and his seaborne bombardment of the Japanese Islands. 2026-05-17 A profile of Henry Harley Arnold, an aviation pioneer who helped build the U.S. Air Force and became a five-star general during World War II. 2026-05-17 Omar Bradley rises to the rank of General of the Army. 2026-05-17 Pius XII assumes the papacy on the eve of World War II. 2026-05-17 A German rocket scientist and former astronaut and U.S. Senator from Ohio are profiled. 2026-05-17 Interviews and film clips profile Nazi Adolf Eichmann. 2026-05-17 Nazi and war profiteer Oskar Schindler saves 1,300 Jews from death. 2026-05-17 Under duress American Iva Toguri broadcasts Japanese propaganda during World War II. 2026-05-17 A profile of Eisenhower recalls his journey from Abilene, Kan., to become the Supreme Allied Commander during World War II and later the 34th president of the United States. 2026-05-18