The Pena Palace, UNESCO World Heritage Site, seen from a natural lookout, Sintra, Portugal, Europe

travel destination photography horizontal colour image outdoors day building exterior architecture pena palace unesco world heritage site sintra portugal europe hill national monument low angle view romanticist 19th century international landmark red tourism clear sky tree castle facade mountain clock tower portuguese culture palace no people colour color image color outside tourist destination travel architectural nobody no one no one low angle from below looking up landmark place of interest unesco world heritage sites unesco world heritage site world heritage sites typically portuguese traditional culture tradition traditional traditionally portuguese european