What Maximum Security Meant for Ancient Tomb Raiders - a podcast by Smithsonian Channel

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...

The latest in science, culture, and history from Smithsonian Channel.

Further episodes of Smithsonian Channel Pick of the Week

Further podcasts by Smithsonian Channel

Website of Smithsonian Channel