Big, Bigger, Biggest
Metro (3x3)
Udgivelsesdato: Jul 12, 2011
Over 4 million people use the London Underground every day. Find out how four key inventions in a series of landmark metro systems helped it become the biggest subway in the Western world.
- Premieret: Mar 2008
- Afsnit: 20
- Følgere: 4
- Slut
- Channel 5
- Torsdag på 19