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 palace popes avignon france building stone architecture tower arches square paved sky cloudy day travel tourism history europe landmark historic medieval gothic castle fortress religious church cathedral culture art historic site historic place city urban outdoor daytime summer spring fall autumn winter