Unusual underwater tunnels

Unusual underwater tunnels In 1988, the world's longest underwater railway tunnel, the Seikan, was opened in Japan.

In addition, there are no less famous tunnels that can interest tourists.

The most famous
12/06/2022

The most famous

The most entertaining
12/06/2022

The most entertaining

Deepest
12/06/2022

Deepest

The oldest
12/06/2022

The oldest

The longest
12/06/2022

The longest

12/06/2022

In 1988, the “Seikan” tunnel, found in the world, came out in Japan. It's new, but there are no less tunnels, buildings attracting tourists.

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