Extreme Engineering - Season 1 - Eps 3: Transatlantic Tunnel
The concept of building a tunnel across the Atlantic Ocean is talked about. It talks about the problems involved, and how it might someday be possible. At the end it examines the concept of a submarine hitting the tunnel, and how hopefully this wouldn't ruin it.
About Extreme Engineering

Title: Extreme Engineering
First Air Date: 2003-04-13
Last Air Date: 2011-07-09
Status: Ended
Rating: 7/10 (from 20 votes)
Language: EN
Seasons: 9
Total Episodes: 77
Network: Discovery
Genres: Documentary
Production Companies: Powderhouse Productions
Synopsis
Extreme Engineering covers major construction projects from all around the world. Some are futuristic projects that may never be done, others are projects that are on there way to completion.