Barrage de Bonneville-Fleuve Columbia-Échelle à poisson
15:06
The Dalles Oregon - Bridge - Columbia River Dam
15:13
Skamokawa Washington - Columbia River
23:48
Bonneville Dam Virtual Tour
25:27
How an 18th Century Sailing Warship Works (HMS Victory)
16:19
Berkeley is now a TOTAL ghost town
18:52
Glacial Lake Missoula
36:55
U.S. Border Progress: Migrants Caught Digging Tunnels Under Border
19:04