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A giant naval vessel is located on the bottom of the Norwegian Sea, while an ancient reptile-like creature is found in Canada.

Rick prepares for battle over a pair of vintage posters, Corey takes a look at an old fireman's megaphone and Chum heads over to a photo gallery.

Rick aims to get a rifle from the 1800s, a seller flexes a signed autobiography by Arnold Schwarzenegger and a ventriloquist doll makes Corey's head spin.

When humanity vanishes, the vast infrastructure underground, from subways and pipelines in the United States, begins to unravel.

Explore the thrilling world of vintage daredevils, from the Human Fly to skateboarding speedsters and diving horses.

You Win Some, You Luge Some: Indio, California proves to be extremely interesting for Dave. Brandi and Jarrod find the ultimate stash, while Mary's locker misfires.

Mary bumps into some vintage art, Ivy adds to his stamp collection and Kenny once again faces his fears.

The Gambler returns to form in Huntington Beach. Rene gets on everyone's bad side, while Ivy's prospects are cloudy at best.

Rene is shocked by what he finds. Darrell's locker multiplies his investment, and Ivy tests his radar on the best.

Brandi and Jarrod uncover an Illuminating stash, Dave does what he does best while Mary finally gets the help she needs.

Two Bids: Mary tries to impress a client, Rene finds protection from predators and Ivy heads to the barbershop.

Rene laughs all the way to the bank, while Darrell reels in a hoard of goodies.

Brandi saves a loose pooch from oncoming traffic, Darrell's locker confirms his Magic Bullet Theory, while Kenny's unit serves up a shiny score.

The Search for the Loch Ness Monster: Andy joins a team of Nessie experts to carry out the biggest search for the Loch Ness Monster in 50 years.

Alice Roberts explores Georgian Edinburgh's finest architecture, the roots of modern Scottishness, and some dark imperial controversies.

Alice Roberts explores Glasgow's age of steam, from lethal diseases and industrial injury to genteel tea rooms.

The River Hunters head to the River Lochy in search for evidence of the clashing Scottish clans embroiled in the 17th Century civil war.

Rick and Beau return to tackle new rivers in a brand-new series. From Wales to Scotland, the pair investigate the cold and murky waters of historic sites. (3 of.

Stirling has long been one of the most strategically important castles in Britain. Dan Jones examines the rich and savage history of this stronghold.

A look at one of Scotland's most popular paid tourist attraction. With a slew of sieges to its name, it is no surprise that the site boasts some formidable defences. (1 of.

The story begins as a fearless Robert Bruce, King of Scotland, invades Ireland in an attempt to unite the Celtic nations against the English. (1 of.

The story continues after Robert Bruce and his army invade Ireland in order to unite the Celtic nations against English oppression. (2 of.

Home to mysterious stone circles, stories of strange beings and reported sightings, Scotland has always been an epicentre of otherworldly phenomena.