castle ruins wildenburg or burgruine wildenburg ruine wild huus over the alpine valley obertoggenburg, wildhaus

alpine ancient architecture attraction autumn blue building burg burgruine canton castle clouds construction europe european exterior forest fortress gallen green hill historic historical history huus landmark landscape medieval mountain mountains nature obertoggenburg old outdoor river rock romantic ruin ruine ruins scene scenery scenic schweiz sky stone summer swiss switzerland tourism tower travel tree trees trip valley view village wall wanderlust wild wildenburg wildhaus