Why Coal Breakers were Horrific Places to Work (Coal Breakers Explained)
13:59
Why Bethlehem Steel Was a Nightmare For Workers
17:21
London's Lost "Stink Pipe" Tunnels | 16,000 Miles of Tunnel Explained
25:39
Battling Beast Of Burden: Why The M26 Dragon Wagon Was The Greatest Heavy Duty Truck Of WWII
24:52
What if all the world's biggest problems have the same solution?
15:03
The Largest Prehistoric Copper Mine in the World
15:50
Why Salt Lake's Trestle Bridge Was Abandoned
19:20
The insane machine that conquered Antarctica for the USSR - the Kharkovchanka
10:01