The Monstrous Machines That Drill Underwater Tunnels
32:41
Ritom Pumped-Storage Plant Project – Tunneling under extreme conditions
27:51
The Insane Scale of Europe’s New Mega-Tunnel
50:11
Oil Rigs – Technological Innovation – Big Bigger Biggest
50:18
GIANTS IN GERMANY: Mega cranes - Heavyweights in Action | WELT Documentary
51:43
Grasberg Mine: Inside Indonesia’s “Mountain Of Gold”
49:16
The Colossal Gas Pipe Laid At The Bottom Of The Ocean | Megastructures | Spark
51:47
Inside The World's Most Advanced Nuclear Submarine
52:41