This 2017 episode covers Great Zimbabwe, a massive stone city in southeastern Africa that was a thriving trade center from the 11th to 15th centuries. When Europeans learned of it in the 16th century, they were certain it wasn't African at all.

Behind the Scenes Minis: Bad Laws, Bad Cats
23:33

Carrington Event
43:31

United States v. Bhagat Singh Thind
46:30