Niederfalkenstein Castle (Burg Niederfalkenstein) is situated high over the municipality Obervellach in the Austrian state of Carinthia. This photo was taken from a train while passing the railway bridge Falkensteinbrücke.
Together with Oberfalkenstein Castle (Burg Oberfalkenstein), it forms a castle complex generally known as Falkeinstein Castle (Burg Falkenstein). Whereas Oberfalkenstein is badly damaged, the restored Unterfalkenstein has turned into a picture book castle. Passengers of the Tauern Railway will enjoy this view while sitting on the valleyside of the carriage.