Investigate a Mysterious Undocumented Rock Wall
17:09
Discover the Origin of a Beautiful Rock Formation
26:01
Surprising Implications of a Cave Discovery
29:28
An ordinary looking Nevada mountainside reveals extraordinary geology and beauty.
16:58
The Bridge That Changed the Map of Europe
24:24
Is This Natural ???
25:24
An Unusual Sandstone Monument: Where Did It Come From? Where Did It Go?
43:36
How Geologists Discovered and Mapped a Great Seaway
38:43