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Season 5 Episode
- Season 4 The Loch Ness Monster
- Season 4 Who is the Zodiac Killer?
- Season 4 The Assassination of JFK
- Season 4 The Lost Colony of Roanoke
- Season 4 The Phoenix Lights Phenomenon
- Season 4 The Ark of the Covenant
- Season 4 The "Missingest" Man in America
- Season 4 Blackbeard's Lost Treasure
- Season 4 Decoding the Mysterious Antikythera Mechanism
- Season 4 The Puzzling Pyramids of Egypt
- Season 4 The Hunt for Stolen Nazi Treasure
- Season 4 The Deadly Bermuda Triangle
- Season 4 The Search for Noah's Ark
- Season 4 Who is D.B. Cooper?
- Season 4 The Legend of Bigfoot
- Season 4 Unlocking the Secrets of Stonehenge
- Season 4 The Search for El Dorado
- Season 4 The Mysterious Havana Syndrome
- Season 4 Unlocking the Secrets of the Nazca Lines
- Season 4 The Hunt for Cleopatra's Missing Tomb
- Season 4 TWA Flight 800
- Season 4 The Hunt for Hitler
- Season 4 The Lost Gold of WWII
- Season 4 The Black Dahlia
- Season 4 Gardner Museum Robbery
History's Greatest Mysteries - Season 4 Episode 10 The Puzzling Pyramids of Egypt
7.40 48 minutes Awe-inspiring and mysterious, the pyramids of Egypt are significant wonders of the ancient world; more than 4,000 years old, they are celebrated architectural marvels, but no one fully understands how they were built or why.
