image tag: simplon tunnel, image quantity: 3

2405x2376px

ice, milan, geneva, egghead, etr 610, trenitalia, italian state railways
3818x2447px

switzerland, sbb, powerhouse, 30000 hp, ready for use, mountain ride, alpine crossing
3676x2099px

freight train, switzerland, the track pitch is extremely, curve inclination, curve, gateway, simplon tunnel