Overlook from Aggstein castle over the Danube. Wachau, Austria, Europe

aggstein castle austria buildings building castle ruins castle ruin castles castle danube danubia river decayed derelict deserted deteriorated dilapidated donau empty europe famous place fortifications fortification fortresses fortress historical historic lower austria niederoesterreich nobody no one no people old overlook overviews overview place of interest rivers river ruins ruin run down rundown sights sight tourist attractions tourist attraction travel photography travel uninhabited view from view of view on view out view over view to view wachau water oesterreich