Building Big - Season 1 Episode 5 Tunnels
What keeps a tunnel from collapsing? Tunnels have advanced from dangerous, claustrophobic passages to spacious, safe subterranean networks as roomy as shopping malls. Host David Macaulay takes viewers underground to explore the history and ingenuity behind some of the world's tunneling marvels.
First Air Date: Oct 03, 2000
Last Air date: Oct 31, 2000
Season: 1 Season
Episode: 5 Episode
Runtime: 26 minutes
IMDb: 0.00/10 by 0.00 users
Popularity: 1.203
Language: English
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