TUNNELS

A tunnel is an passageway through an object to connect two or more points on either side of the object. A common type of tunnel is build underground to allow passage through an area where it is not practical to travel over the ground due to an obstruction such as a hill, road or river. Tunnels are also build under modern cities to provide space for cabling, water supplies and sewage (sewers). Natural tunnels are produced by the effects of water eroding the earth and rocks or by lava from volcanic eruptions (lava tubes).
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Pictures Of Tunnels

1
A Road Going Through A Tree
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A Road Going Through A Tree
Trees|Roads|Wow
2
Funny Tunnel Sign
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Funny Tunnel Sign
Signs|Mouths|Roads|Billboards|Wow
3
A Tunnel Through A Giant Tree
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A Tunnel Through A Giant Tree
Trees|Wow
4
A Tunnel Under A Road
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A Tunnel Under A Road
Roads|Wow
5
Tunnel Digging Machine
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Tunnel Digging Machine
6
Subway Tunnel Under Construction
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Subway Tunnel Under Construction
7
Shark Tunnel At An Aquarium
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Shark Tunnel At An Aquarium
Sharks
8
Natural Ice Tunnel
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Natural Ice Tunnel
Ice
9
Wisteria Flower Tunnel
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Wisteria Flower Tunnel
Flowers|Wow
10
Leafy Tunnel
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Leafy Tunnel
Leaves
11
Cat Tunnel
Cat Tunnel
Cats
12
Children’s Play Tunnel
Children’s Play Tunnel
13
Leafy Tunnel
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Leafy Tunnel
Leaves|Wow
14
A Tunnel Under A River
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A Tunnel Under A River
Rivers|Roads

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