Underground funicular at Saas-Fee, Switzerland
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 ( MSL) 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 , with an altitude difference of 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.
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