
National Geographic - MegaStructures
The Channel Tunnel
It's the most expensive railway tunnel ever built—a product of endless surveying, giant boring machines, and a massive gamble. The Channel Tunnel connecting England and France is now a huge success, but there was a time when it was the tunnel nobody wanted.
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http://rapidshare.com/files/100230654/MS_ChannelTunnel_Inspired.part2.rar
http://rapidshare.com/files/100233627/MS_ChannelTunnel_Inspired.part3.rar
http://rapidshare.com/files/100234936/MS_ChannelTunnel_Inspired.part4.rar
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