Megastructures: Grand Canyon...

5Spike

Thursday 9 May 2019  23:55 - 00:55 (60 mins)
...Skywalk. Documentary about pioneering engineering projects follows engineers as they construct a horseshoe-shaped glass walkway over the Grand Canyon.

Megastructures: Grand Canyon... (5Spike) Thursday 9 May 2019 23:55 - 00:55