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Featuring exclusive interviews with all 20 living White House chiefs of staff and presidents Jimmy Carter and George H.W. Bush, The Presidents' Gatekeepers explores the fascinating and untold story of this unique fraternity and the presidents they serve.

In 1865, Confederate President Jefferson Davis fled with nearly $20 million worth of gold & silver from the Confederate treasury. Later, Davis was captured, but the treasure had vanished. In REBEL GOLD expert treasure hunters join forces to search for the legendary treasure.

Stonehenge is one of the most iconic monuments in the world, standing as a beacon of early civilization for over 4,000 years. But mystery still remains: how did people move 90 multi-ton stones 200 miles across land and sea to the ancient circle?

This is the extraordinary story of the FDNY firefighters from Ten House, the firehouse right next to the Twin Towers, during the September 11, 2001 terrorist attacks against the US. Its firefighters were the first ones in and the last ones out.

Get ready to binge on some of the most exciting specials and unique events that Discovery has ever put together. All in one place.

What does it take to lift a ship bigger than the Titanic? Follow this major salvage operation and see the inside story told by the elite team of engineers tasked with the seemingly impossible: rotating the massive ship and eventually removing it from the sea.

Newly released audio recordings from Air Force One, combined with digitally remastered audio from the Dallas Police Force, and testimonies and radio recordings of on-site reporters, reveal the riveting, behind-the-scenes story of the Kennedy assassination in JFK: The Lost Tapes.

He is the world's most famous prophet. But what secrets did Nostradamus hide in his famously obscure words? And what mysteries do the words trigger in the minds that read them? Nostradamus Decoded unlocks the genius of the greatest seer of all time.

For years the men of President John F Kennedy's Secret Service detail have kept silent about that terrible day in Dallas, but now they've gathered back at the scene of the assassination, and are speaking out for the first time.

The most wanted man on the planet, Pablo Escobar, buried his billion-dollar fortune all over Colombia. Legends say it has never been found. Two former CIA officers, armed with the skills and training, go on the hunt for the alleged hidden treasure in this all-new series.

History's most brilliant mind was also its most dangerous. With 300 inventions, Tesla's mind still dominates our world. While he was making millions, he also made enemies. His research was lost after a mysterious death. Recently declassified documents may help solve the mystery.

Join Mike Rowe on the ultimate bar crawl through America's beer- and liquor-filled past.

Each episode of Outlaw Empires tells the complete story of an iconic American outlaw dynasty directly from the mouths of people who were on the inside.

Journalist Oliver "Olly" Steeds travels to the ends of the earth to investigate the truth behind some of the world's biggest mysteries.

"Expedition Unknown" chronicles the adventures of Josh Gates as he investigates unsolved iconic stories across the globe.

See the dramatic story of NASA's pioneering, awe-inspiring missions, commemorating the first 50 years of space exploration.