castle ruins on a hill in konigswinter on cloudy day

konigswinter germany april 2021: drachenfels castle ruins hill cloudy spring day building tree monastery fortification tower rock landmark abbey plant estate wall house ancient architecture background bonn city closed dark destination drachenburg dragon europe european fortress german historic history landscape lockdown medieval mountain mysterious old palace rhine rhine-westphalia road scenery schloss seven hills siebengebirge sightseeing sky stone tourism travel uplands valley villa walk