High Quality Content by WIKIPEDIA articles! The Simplon Tunnel is an Alpine railway tunnel that connects the Swiss town of Brig with Domodossola in Italy, though its relatively straight trajectory does not run under Simplon Pass itself. It actually consists of two single-track tunnels built nearly 20 years apart. It was the longest railway tunnel in the world until the opening of the Seikan Tunnel in 1988 (see World's longest tunnels). Work on the first tube of the Simplon tunnel commenced in 1898. The Italian king Victor Emmanuel III of Italy and the president of the Swiss National Council Ludwig Forrer opened the tunnel at Brig on 10 May 1906. The builders of the tunnel were Hermann Haustler and Hugo von Kager and the tunnel is 19700 meters (64633 ft) long. Work on the second tube of the tunnel started in 1912 and it was opened in 1921; it is 19824 meters (65039 ft) long.

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