Impossible Repairs

Smithsonian Channel

Friday 19 August 2022  01:00 - 02:00 (60 mins)
Big City Tunnel Boring. Go under one of the world's largest lakes, for a multi-million dollar tunnel boring project in one of the fastest growing cities on Earth.

Impossible Repairs (Smithsonian Channel) Friday 19 August 2022 01:00 - 02:00