White Rocks: More Spectacular Utah Scenery
30:11
White Pocket: Virtual Hiking Tour
1:14:05
Grand Staircase-Escalante National Monument, Understanding it, Visiting it
21:26
Return to the Impossible: I Found New, Compelling Evidence
1:56:00
Pre-Egyptian Technology Left By an Advanced Civilization That Disappeared
43:36
How Geologists Discovered and Mapped a Great Seaway
32:52
Discovering a Hidden Oasis in a Remote Desert Canyon
18:25
Encore PLUS d'endroits impossibles à atteindre sur Google Earth
57:51