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History's Greatest Mysteries: Season 4 | Slate

History's Greatest Mysteries

Season 4

Season 3 Every season Season 5

S4E1The Loch Ness Monster30 Jan 2023
S4E2Who is the Zodiac Killer?6 Feb 2023
S4E3The Assassination of JFK13 Feb 2023
S4E4The Lost Colony of Roanoke20 Feb 2023
S4E5The Phoenix Lights Phenomenon27 Feb 2023
S4E6The Ark of the Covenant5 Mar 2023
S4E7The "Missingest" Man in America12 Mar 2023
S4E8Blackbeard's Lost Treasure19 Mar 2023
S4E9Decoding the Mysterious Antikythera Mechanism26 Mar 2023
S4E10The Puzzling Pyramids of Egypt16 Apr 2023
S4E11The Hunt for Stolen Nazi Treasure23 Apr 2023
S4E12The Deadly Bermuda Triangle30 Apr 2023
S4E13The Search for Noah's Ark7 May 2023
S4E14Who is D.B. Cooper?14 May 2023
S4E15The Legend of Bigfoot21 May 2023
S4E16Unlocking the Secrets of Stonehenge28 May 2023
S4E17The Search for El Dorado4 Jun 2023
S4E18The Mysterious Havana Syndrome10 Jun 2023
S4E19Unlocking the Secrets of the Nazca Lines24 Jun 2023
S4E20The Hunt for Cleopatra's Missing Tomb9 Jul 2023
S4E21TWA Flight 80016 Jul 2023
S4E22The Hunt for Hitler23 Jul 2023
S4E23The Lost Gold of WWII30 Jul 2023
S4E24The Black Dahlia6 Aug 2023
S4E25Gardner Museum Robbery13 Aug 2023