Top view of the spiral stairs inside the towers of masonic Initiation Well at Quinta da Regaleira, Sintra, Portugal, Europe

photography colour colour image color color image horizontal horizontal image indoors inside day background people incidental people people in the background travel travel destination travel destinations tourist destination landmark landmarks famous well known well known castle romanesque gothic renaissance style quinta da regaleira sintra portugal portuguese europe european building exterior building buildings building interior building interiors interior interiors architecture architectural romanticism palace fort forts fortified fortification fortress fortresses spiral staircase staircase aerial view high angle view high angle tower history historical historic heritage medieval tourist tourists holiday maker holiday makers on holiday tourism diminishing perspective vanishing point perspective