Expedition Unknown - Season 4

This time, Josh Gates' insatiable curiosity and appetite for adventure leads him to destinations around the world, uncovering the truth behind more illustrious legends and fascinating lore. With access to the latest research and scientific technology, Gates tackles twelve all-new expeditions, including: the history of the mighty Vikings; the mystery of Stonehenge; the lost tombs of the Mayan Snake Kings; the search for a ship trapped in the dunes of Australia; a quest for the true identity of Nefertiti; and the hunt for twelve buried treasure boxes hidden right here in America.

• S4 E1 - Viking Secrets

• S4 E2 - Vikings in America

• S4 E3 - Origins of Stonehenge

• S4 E4 - The Secret

• S4 E5 - Butch Cassidy's Lost Loot

• S4 E6 - Hunt for the Metal Library

• S4 E7 - Great Women of Ancient Egypt

• S4 E8 - Egypt's Lost Queens

• S4 E9 - Global Game Show: Out of This World

• S4 E10 - Secrets of Brother XII

• S4 E11 - Episode 11

• S4 E12 - Episode 12

• S4 E13 - Episode 13

• S4 E14 - Episode 14

• S4 E15 - Season 4