World's longest railroad tunnel to open in Switzerland

Photo taken May 31, 2016, in Erstfeld, Switzerland, shows an area near the north exit of the Gotthard Base Tunnel, the world's longest railroad tunnel that passes through the Alps. The 57-kilometer tunnel, which surpassed Japan's 53.85 km Seikan Tunnel, the previous longest railroad tunnel, is to open on June 1. (Kyodo) ==Kyodo