Marksburg, castle, Upper Middle Rhine Valley, UNESCO World Heritage Site, Rhineland-Palatinate, Germany, Europe

photography horizontal color image travel destinations travel outdoors day no people unesco world heritage site marksburg castle fortress built structure architecture building exterior building upper middle rhine valley valley rhine valley rhineland palatinate germany europe side view clear sky copy space low angle view valleys travel destination tourist destination tourist destinations outdoor outside nobody no one no person daytime castles fort forts fortified fortification history historic historical buildings architectural