Tunnels save time, money, and the environment by providing shortcuts through tough terrain. But they can also be dangerous, especially as today's tunnels grow longer and deeper. Follow the Brenner Base Tunnel and Fehmarnbelt link to explore how engineers use past disasters to make construction and travel safer.
Watch Engineering by Catastrophe Season 01 Episode 02 M4ufreemovies for free in HD quality. Stream instantly with English subtitles — no download or account needed.