The Metro Alpin is an underground funicular situated above the Swiss town of Saas Fee, in the canton of Valais. Opened in 1984, it links the Felskinn cable-car station on the shore of the Fee Glacier to the Mittelallalin in the north flank of the Allalinhorn. The Felskinn–Mittelallalin Tunnel has a length of 1,749 metres, with an altitude difference of 476 metres between the two stations.
The Metro Alpin is the highest funicular in the world. Being a fully underground railway, it is also considered the highest subway in the world.
Wikipedia https://en.wikipedia.org/wiki/Metro_Alpin
Coordinates 46°3'46.458" N 7°54'39.676" E
