What is the first tunnel in the world?

The first tunnel built whose engineer is known was excavated in the island of Samos. The engineer Eupalinos de Megara, built this tunnel in the 530 b.C to supply with water the capital of the island and was, with its 1 km length, considered as one of the three marvels of the helenic world.



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The first tunnel built whose engineer is known was excavated in the island of Samos. The engineer Eupalinos de Megara, built this tunnel in the 530 b.C to supply with water the capital of the island and was, with its 1 km length, considered as one of the three marvels of the helenic world.

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Being 25 km long the Laerdal Tunnel i Norway is the world's longest road tunnel - and it is equipped with support and cable ladders from Oglaend System. To ease the drive through the 25 km long tunnel, there is a huge hall every 6 km.

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The Laerdal Tunnel in western Norway is the longest road tunnel in the world. It takes about 20 minutes to pass through the tunnel. Brightly colored lights placed every six kilometers help drivers stay alert.

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10 of the world's greatest tunnels
  • Seikan Tunnel (Japan) — ...
  • Bund Sightseeing Tunnel (China) — ...
  • Gotthard Base Tunnel (Switzerland) — ...
  • Lærdal Tunnel (Norway) — ...
  • Channel Tunnel (UK and France) — ...
  • Tokyo Bay Aqua-Line (Japan) — ...
  • Eisenhower Tunnel (Colorado) — ...
  • Spiralen tunnel (Norway) —


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The London Underground first opened as an underground railway in 1863 and its first electrified underground line opened in 1890, making it the world's oldest metro system.

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The world's first underground railway opened in London in 1863, as a way of reducing street congestion.

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Inaugurated on 17 January, 1875, the Tünel is the second-oldest fully underground urban railway in the world, after the London Underground (1863) and oldest in continental Europe, pre-dating the Budapest Metro by 21 years. This diagram: view.

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China???????? has the most number of tunnels in the world. There are 16229 tunnels in China. The largest tunnel in China is Bohai Strait Tunnel. After China, Japan???????? has the most number of tunnels in the world.

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