Tuesday 10 July 2012

8 Of The Most Unusual Tunnels In The World

image credit

Tunnels are mostly human creations that commonly pass through the mountains and hills. But there are tunnels that have a very unusual purpose, appearance or location.
This is a list of tunnels that you can not see often, because they are rare or unique. That is why some of them have become very popular tourist attractions.

(thanks Bosko)

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