Duernstein and the Duernstein Castle ruins, Wachau, Lower Austria, Europe

and architecture attraction attractions austria austrian bastion bastions building buildings castle castle castles day daylight daytime decayed delapidated derelict deteriorated down duernstein during europe european exterior exteriors famous fortification fortifications fortress fortresses known lower neglected nobody outdoor photo photos renowned ruin ruined ruinous ruins run run down rundown seeing shot shots sight sights site sites stronghold strongholds the tourism tourist touristic touristical touristically touristy wachau well well known worth