Why California's Lost Highway is Now Underwater

30:13
Why California's Mega-Dam Collapsed

18:30
Exploring Abandoned Highway 99 North of Los Angeles - The Ridge Route Alternate

15:50
Why Salt Lake's Trestle Bridge Was Abandoned

15:08
The St. Francis Dam Disaster: Visiting the Ruins of the 1928 Catastrophe

29:32
DES TECHNOLOGIES ÉTONNANTES DANS LE PROCESSUS DE CONSTRUCTION DE ROUTES

21:14
The Lost Town of the Uncle Sam Mine - Has Nobody Been Here in a Century?

22:09
The Illogical Case Behind Buying Greenland

21:00