How the “lost cities” of the Amazon were finally found
8:35
Why you don’t hear about the ozone layer anymore
44:25
The Legends of El Dorado: City of Gold (Full Episode) | Lost Cities with Albert Lin
12:44
The tragic story of this famous meteorite
24:33
What's inside this crater in Madagascar?
16:57
What Happened To The Nautilus?
27:08
Who made these circles in the Sahara?
14:19
This New Discovery in the Amazon is Rewriting History
10:31