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TVPGSecrets44mSmithsonian Channel

No single civilization has had more impact on history than the ancient Greeks, but how it all started has always been shrouded in mystery; a remarkable discovery reveals the mysterious origins of one of history's most fascinating cultures.

Original Air Date: Aug 30, 2021

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S4, EP5 "Plagues of Egypt"
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S4, EP5 "Plagues of Egypt"

New evidence may prove that the Bible's tale of the ten plagues of Egypt actually happened.

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S7, EP5 "Riddle of the Roman Skulls"
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S7, EP5 "Riddle of the Roman Skulls"

The discovery of 51 strangely shaped skulls at a 1,600-year-old Hungarian gravesite is changing the narrative of the decline of the Roman Empire.

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S2, EP2 "Great Pyramid"
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S2, EP2 "Great Pyramid"

Engineer Peter James and archaeologist Mark Lehner attempt to solve the mystery of how the Great Pyramid was built.

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S1, EP5 "A Viking Map?"
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S1, EP5 "A Viking Map?"

Researchers examine a 15th-century map depicting the Norse exploration of the New World to determine whether it is a genuine artifact or a clever hoax.

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S7, EP6 "Murdered Pharaoh"

S7, EP6 "Murdered Pharaoh"

The Sphinx, the Shroud of Turin, El Dorado, and other ancient mysteries.

S7, EP5 "Riddle of the Roman Skulls"

S7, EP5 "Riddle of the Roman Skulls"

The discovery of 51 strangely shaped skulls at a 1,600-year-old Hungarian gravesite is changing the narrative of the decline of the Roman Empire.

S7, EP4 "Griffin Warrior"

S7, EP4 "Griffin Warrior"

No single civilization has had more impact on history than the ancient Greeks, but how it all started has always been shrouded in mystery; a remarkable discovery reveals the mysterious origins of one of history's most fascinating cultures.

S7, EP3 "Underwater Stonehenge"

S7, EP3 "Underwater Stonehenge"

The discovery of a submerged, 9,000-year-old stone circle may reveal the mysterious origins of Stonehenge.


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Some of the world's famous relics have secrets behind them that contribute to their complete stories. Secrets explores the mysteries relating to some of these historic landmarks to reveal the truths behind them. The latest research and forensic techniques are used to find out the stories behind the fabled cities, monuments and remnants featured on the show. Episodes include Egyptian historians on a mission to decode the mysteries of the Great Sphinx, archeologists unearthing secrets of Richard III, and an investigation into whether the bust of Nefertiti is real or a hoax.
Original Air Date: May 19, 2013
Genres: DocuseriesTV Series
Rating: TVPG
Playback: HD
7 seasons available on demand
Available on

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