The Fall of Galloping Gertie • Damn Interesting
https://www.damninteresting.com/the-fall-of-galloping-gertie/The Insane Scale of Europe’s New Mega-Tunnel - YouTube
https://www.youtube.com/watch?v=QiYvXKQksgIr/Documentaries - $10 Billion Mega Construction (2016) - Building of the worlds longest and deepest rail tunnel, and its opening in Switzerland after nearly 2 decades under construction.
https://www.reddit.com/r/Documentaries/comments/ac87vw/10_billion_mega_construction_2016_building_of_the/r/EngineeringPorn - Neat piping
https://www.reddit.com/r/EngineeringPorn/comments/ach5rx/neat_piping/