What Maximum Security Meant for Ancient Tomb Raiders

The Han dynasty tombs were packed with some of the empire's most valuable relics. To guard against theft, colossal stones, each weighing six tons, were cut to block the passageways from relentless tomb raiders. (2:34)

Tags

Latest Videos

Preview thumbnail for video'L.A. Welcomes a Camera Maker Fleeing Nazis
L.A. Welcomes a Camera Maker Fleeing Nazis (1:37)
Preview thumbnail for video'Scotland's Most Mysterious Stone Age Settlements
Scotland's Most Mysterious Stone Age Settlements (2:11)
Preview thumbnail for video'Was a Jamestown Governor the Father of U.S. Democracy?
Was a Jamestown Governor the Father of U.S. Democracy? (1:57)
Preview thumbnail for video'Why Pyramids Were Effective Advertisements for Tomb Robbers
Why Pyramids Were Effective Advertisements for Tomb Robbers (2:48)
Preview thumbnail for video'This Dangerous Trick Wowed Houdini’s Fans
This Dangerous Trick Wowed Houdini’s Fans (3:49)
Preview thumbnail for video'Stratford-upon-Avon Is a Magnet for Shakespeare Lovers
Stratford-upon-Avon Is a Magnet for Shakespeare Lovers (2:37)
Preview thumbnail for video'Thomas Cromwell: Henry VIII's Partner in Crime
Thomas Cromwell: Henry VIII's Partner in Crime (4:11)
Preview thumbnail for video'How the Titanic Sinking Became Fake News
How the Titanic Sinking Became Fake News (1:27)
Preview thumbnail for video'New Discoveries at Saqqara
New Discoveries at Saqqara (3:06)