Smithsonian Channel Canada (SMITH)

The 2015 crash of a Cessna 150 at Big Lake is investigated. (Repeat).

Marking the 20th anniversary of the death of Princess Diana in a car crash in Paris in August 1997, this documentary reveals how Diana learned to manipulate and control the photographers who pursued her ever since she started seeing the heir to the British throne, Prince Charles, in the early '80s. Contributions from tabloid editors, royal photographers, Diana's friends, and former Press Attaché a

The Season 2 premiere spotlights the A-10 Thunderbolt II, which is often called "Warthog" due to its clunky appearance. (Repeat).

A search for Muhammad Ali's 1960 Olympic gold medal, which he threw into the Ohio River. (Repeat).

Dig in below a dilapidated mud-brick-and-clay structure that conceals a network of tunnels packed with ancient artifacts. Follow Egyptologists as they use a mini-laser to decipher the secrets of these hidden vaults. (Repeat).

The search for a monoplane that crashed two miles from its destination proves difficult because of the location: Knik Arm, an inland waterway near Anchorage that has extreme tides and frigid water temperatures. (Repeat).

Clive Anderson and Mary-Ann Ochota investigate one of Britain's sinister mysteries: decapitated bodies in gruesome poses, warrior kings with tiny heads, and killer cake. (Repeat).

The 2015 crash of a Cessna 150 at Big Lake is investigated. (Repeat).

Amazing buildings, bridges, lifts and other structures that pushed structural concrete engineering to the edge. (Repeat).

Greek travelers and writers from the ancient world mythologized the Amazons, but these legendary female warriors were very real. They hailed from the ferocious nomadic Scythian tribes that controlled a huge swath of Central Asia and kept the great powers of Greece, Persia, and China at bay. With the help of recent archaeological findings. (Repeat).

Experts discover a sealed Egyptian burial chamber was robbed by tomb raiders, so they launch an investigation to identify the royal figure buried there and understand how thieves broke in. (Repeat).

Amazing buildings, bridges, lifts and other structures that pushed structural concrete engineering to the edge. (Repeat).

Greek travelers and writers from the ancient world mythologized the Amazons, but these legendary female warriors were very real. They hailed from the ferocious nomadic Scythian tribes that controlled a huge swath of Central Asia and kept the great powers of Greece, Persia, and China at bay. With the help of recent archaeological findings. (Repeat).

Experts discover a sealed Egyptian burial chamber was robbed by tomb raiders, so they launch an investigation to identify the royal figure buried there and understand how thieves broke in. (Repeat).

Clive Anderson and Mary-Ann Ochota investigate one of Britain's sinister mysteries: decapitated bodies in gruesome poses, warrior kings with tiny heads, and killer cake. (Repeat).

The 2015 crash of a Cessna 150 at Big Lake is investigated. (Repeat).

The search for a monoplane that crashed two miles from its destination proves difficult because of the location: Knik Arm, an inland waterway near Anchorage that has extreme tides and frigid water temperatures. (Repeat).

A flyover tour of the Big Apple includes its five boroughs, Coney Island and Times Square. (Repeat).

Walk among colossal wonders scattered across the Earth's surface. Peek at a huge ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint, and a pentagram etched into a remote peninsula in Kazakhstan. (Repeat).

Try to find the origins of the planet's most puzzling structures. Traipse along ancient pathways crisscrossing Easter Island, find gigantic designs carved into Asia's Eastern Steppe, and ascend a tall pyramid rising from Antarctica's icy landscape. (Repeat).

Plummet into some of the most cavernous places on the planet. Explore an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica. (Repeat).

Exploring the scattered terrain of St. Lawrence Islands, a significant migration corridor for small mammals and rare wildlife in between some of Canada's largest urban centers. The natural areas must find a balance with the encroaching human development. (Repeat).

Dig up artifacts virtually using stunning satellite imagery. See evidence of female power in ancient Kush, secrets long buried in a New Mexico pueblo, a shocking find near the amazing Nazca Lines in Peru, and new mysteries in Cambodia's Angkor Wat. (Repeat).

Clive and Mary-Ann investigate 34,000 years of Britain's gods and monsters. The intrepid duo hunts for King Arthur; uncovers the gates of hell; and deciphers some very rude ancient graffiti in search of answers to some of Britain's most mystic mysteries. (Repeat).

Charles Darwin, a young scientist, embarks on an unusual voyage at sea upon the HMS Beagle. While exploring the South American coastline, Darwin and the crew find themselves amidst a whirlpool of discovery, danger, and significant consequence. (Repeat).

Elizabeth McGovern hosts this look at American heiresses who, from the 1870s to WWI, wed cash-strapped British aristocrats. First up: the first marriages between the "nouveau riche," who were snubbed by old-money families, and the British aristocracy. Some resulted from love, but others were little more than dollar-for-title deals. (Repeat).

A look at the Northrop Grumman EA-6B Prowler and Boeing EA-18G Growler, Navy planes that jam and destroy enemy radar. (Repeat).

Greek travelers and writers from the ancient world mythologized the Amazons, but these legendary female warriors were very real. They hailed from the ferocious nomadic Scythian tribes that controlled a huge swath of Central Asia and kept the great powers of Greece, Persia, and China at bay. With the help of recent archaeological findings. (Repeat).

Experts discover a sealed Egyptian burial chamber was robbed by tomb raiders, so they launch an investigation to identify the royal figure buried there and understand how thieves broke in. (Repeat).

The 2015 crash of a Cessna 150 at Big Lake is investigated. (Repeat).

Clive and Mary-Ann investigate 34,000 years of Britain's gods and monsters. The intrepid duo hunts for King Arthur; uncovers the gates of hell; and deciphers some very rude ancient graffiti in search of answers to some of Britain's most mystic mysteries. (Repeat).

Charles Darwin, a young scientist, embarks on an unusual voyage at sea upon the HMS Beagle. While exploring the South American coastline, Darwin and the crew find themselves amidst a whirlpool of discovery, danger, and significant consequence. (Repeat).

It is uncovered why some of the world's most advanced architectural achievements were left behind eventually. (Repeat).

The remains of Henry Ford's suburban dream in the Brazilian jungle are examined. (Repeat).

Everest is where earth meets sky. It is discovered how the most thrilling and dangerous point at the top of the world continues to fascinate people, and what it takes to conquer the Big One. (Repeat).

It is uncovered why some of the world's most advanced architectural achievements were left behind eventually. (Repeat).

The remains of Henry Ford's suburban dream in the Brazilian jungle are examined. (Repeat).

Everest is where earth meets sky. It is discovered how the most thrilling and dangerous point at the top of the world continues to fascinate people, and what it takes to conquer the Big One. (Repeat).

Clive and Mary-Ann investigate 34,000 years of Britain's gods and monsters. The intrepid duo hunts for King Arthur; uncovers the gates of hell; and deciphers some very rude ancient graffiti in search of answers to some of Britain's most mystic mysteries. (Repeat).

Charles Darwin, a young scientist, embarks on an unusual voyage at sea upon the HMS Beagle. While exploring the South American coastline, Darwin and the crew find themselves amidst a whirlpool of discovery, danger, and significant consequence. (Repeat).

The 2015 crash of a Cessna 150 at Big Lake is investigated. (Repeat).

Grab your ticket for a scenic cross-country flight, from the mountains to the prairies, and from sea to shining sea. (Repeat).

Feudal Japan was in turmoil in 1551. A succession dispute inside the Shogunate has seen central government collapse, kick-starting a period of bloody civil war known as the Sengoku Jidai - 'the Age of the Warring States.' (Repeat).

With much of central Japan under his control, Nobunaga must now fight the powerful Buddhist armies that oppose his bid to rule the nation. (Repeat).

Nobunaga overcomes some of his biggest challenges in his effort to reunite Japan. Included: How he combats an army of fierce rebels and a plot launched from deep within his inner circle aimed at ending his reign forever. (Repeat).

Hideyoshi risks everything he has worked for when he invades mainland China. (Repeat).

After carefully watching and waiting, a wily veteran Samurai emerges from the shadows and launches his own bid for supreme power. (Repeat).

A look at how acts of resistance and rebellion during slavery paved the way to abolition. (Repeat).

Using masses of archival footage, revisiting the Golden Age of Airships and exploring why they captured the public imagination, including the fiery disaster of the Hindenburg. (Repeat).

The story of Consuelo Vanderbilt, who married the duke of Marlborough. Also: How the American wives of British aristocrats survived, and even thrived, in their new lives. (Repeat).

The Black Hawk helicopter is spotlighted. (Repeat).

The remains of Henry Ford's suburban dream in the Brazilian jungle are examined. (Repeat).

Everest is where earth meets sky. It is discovered how the most thrilling and dangerous point at the top of the world continues to fascinate people, and what it takes to conquer the Big One. (Repeat).

Using masses of archival footage, revisiting the Golden Age of Airships and exploring why they captured the public imagination, including the fiery disaster of the Hindenburg. (Repeat).

A look at how acts of resistance and rebellion during slavery paved the way to abolition. (Repeat).

Using masses of archival footage, revisiting the Golden Age of Airships and exploring why they captured the public imagination, including the fiery disaster of the Hindenburg. (Repeat).