Tower stairs in Quinta da Regaleira, Sintra, Portugal, Europe

deserted no one no people nobody uninhabited empty castle castles palace schloss unesco building buildings structure construction constructions portugal europe europe's tourist attraction tourist attractions place of interest famous place famous places sight landmark tourist landmark places of interest tourist spot portuguese world heritage site world heritage site world heritage unesco world heritage site unesco world site southern europe south europe european stairway stairways entrance stair stairs stairway staircase steps stairways staircases unesco world heritage unesco site world hertiage unesco world heritage site travel photography lisbon district distrito de lisboa sintra quinta da regaleira