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 garden fortress walls stone aerial view city french france architecture green plants flowers people walking paths buildings cityscape summer day travel europe tourism history historic medieval ancient landscape outdoor nature scenery vacation culture heritage destination explore sightseeing landmark beauty serene relaxing