Palace of the Popes, Avignon, UNESCO World Heritage Site, Vaucluse, Provence-Alpes-Cote d'Azur, France, Europe

palace popes avignon unesco world heritage site vaucluse provence alpes cote d'azur france europe avignon france courtyard inner courtyard arches stone walls medieval architecture gothic architecture history palace papal palace pope papacy french history european history travel tourism landmark sightseeing architecture building ancient architecture old building stone grass green grass green lawn green space outdoor historic historic site historical heritage cultural heritage french heritage european heritage culture heritage site visiting europe