The Lake Superior Copper Mystery | Isle Royale |
28:10
Old Copper Culture: North America's Forgotten Metal Workers
11:15
Arctic Climate Collapse! This time it's REALLY flipped!!
14:19
boules de pierre mystérieuses
18:00
The Babylonian Map of the World with Irving Finkel | Curator’s Corner S9 Ep5
30:07
55 Times Mother Nature Got Angry on Camera
32:13
The search for Great Lakes shipwrecks
14:03
Woodturning Sweet Gum Seed Pods Into Stunning Box
52:50