sherbetbizarre
Special Branch
- Joined
- Sep 4, 2004
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- 5,242
http://myscienceacademy.org/2013/02/01/ ... the-world/8 OF THE MOST UNUSUAL TUNNELS IN THE WORLD
The 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.