The Antikythera Youth: Who Was This 2,000-Year-Old Bronze God?

The Nebra Sky Disk: The World's Oldest Map of the Stars?

The London Hammer: A 100-Million-Year-Old Tool?

The Carnac Stones: 3,000 Megaliths Aligned in France

The Ulfberht Swords: How Did Vikings Make "Super Steel"?

The Piri Reis Map: A 1513 Map That Shows Antarctica?

The Plain of Jars: Who Built These 2,000-Year-Old Megalithic Jars?

The Terracotta Army's Chrome-Plated Weapons: A 2,200-Year-Old Secret

The Sajama Lines: Are They Older and Bigger Than Nazca?

The Viking Sunstone: How Did They Navigate Without a Compass?

The Shroud of Turin: Is This the Face of Jesus or a Medieval Forgery?

The Quimbaya Artifacts: Ancient Golden Fighter Jets?

The Yonaguni Monument: An Underwater City or a Natural Formation?

Roman Dodecahedrons: What Were These Mysterious Objects Used For?

The Lost City of Dwarka: Did an Ancient Metropolis Sink Beneath the Sea?

Puma Punku: Were These Stones Cut with Power Tools?

The Antikythera Mechanism's Calendar: The Secret to the Olympic Games

The Secret of Greek Fire: The Ancient World's Deadliest Weapon

15 Out-of-Place Artifacts That Challenge the History Books

The Nazca Lines: Who Drew These Giant Figures in the Desert?

10 Lost Technologies That Science Still Can't Explain

The Ica Stones: Did Humans and Dinosaurs Live Together in Peru?

The Dropa Stones: Proof of an Ancient Alien Crash in China?

The Saqqara Bird: An Ancient Egyptian Glider or a Child's Toy?

The 2,000-Year-Old Baghdad Battery: Ancient Power or Hoax?

World's First Temple, Built 12,000 Years Ago, Stuns Scientists

Ancient Computer Found in Shipwreck Rewrites History