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.
| Title | Building Big - Season 1 Episode 5 Tunnels |
|---|---|
| Year | 2000 |
| Genre | Documentary |
| Country | |
| Studio | PBS |
| Cast | David Macaulay |
| Crew | |
| Alternative Titles | |
| Keyword | |
| First Air Date | Oct 03, 2000 |
| Last Air date | Oct 31, 2000 |
| Season | 1 Season |
| Episode | 5 Episode |
| Runtime | 26:14 minutes |
| Quality | HD |
| IMDb: | 0.00/ 10 by 0.00 users |
| Popularity | 0.514 |
| Language | English |
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