The Gotthard Base Tunnel (GBT) is a railway tunnel under construction in Switzerland. With a planned length of 57 km (35 miles) and a total of 153.5 km (95 miles) of tunnels, shafts and passages [...] [...] read more
Image info:
- Author: Cooper.ch
- License: pd
- Source: http://upload.wikimedia.org/wikipedia/commons/d/d4/NEAT_GBT_engl.png







