832-388473 - Koppental hiking trail from Obertraun to Bad Aussee, river Koppentraun, railway tunnel of the old route, Salzkammergut, Upper Austria, Austria, Europe
832-337338 - Construction work for Porta Alpina, the underground train stop in the Gotthard base tunnel, with driving work truck and a red train of the Matterhorn-Gotthard-Bahn (background), Sedrun, Grisons, Switzerland
832-125594 - Pedestrian tunnel with chalk drawings on the ground, painted by children, disused Suedbahnhof railway station, Krefeld, North Rhine-Westphalia, Germany, Europe
832-125593 - Pedestrian tunnel with chalk drawings on the ground, painted by children, disused Suedbahnhof railway station, Krefeld, North Rhine-Westphalia, Germany, Europe
832-125590 - Disused Suedbahnhof railway station, built in 1908, exit leading through a tunnel, restored, Krefeld, North Rhine-Westphalia, Germany, Europe
832-125592 - Pedestrian tunnel with chalk drawings on the ground, painted by children, disused Suedbahnhof railway station, Krefeld, North Rhine-Westphalia, Germany, Europe