Mysterious Artifacts That Defy Explanation
15:07
4 Out-Of-Place Artefacts that Shouldn't Have Existed
13:30
Inexplicable Items: 5 Mysterious Ancient Artifacts
19:16
More Creepy Archaeological Discoveries
20:18
China is Building an Insane Artificial River
11:45
Worlds Most Dangerous Sinkholes
14:18
Five More Lesser Talked About Ancient Marvels
42:27
Europe's (Highly Debated) Prehistoric Plague
19:38