Avignon has a magnficent urban landscape. The Rocher des Doms overlooks the city and the Rhône. Here there is an exceptional architectural group which includes the Pont d'Avignon (also known as Pont Saint Bénezet, the Ramparts, the Petit Palais, the Doms Cathedral and the massive walls of the Palace of the Popes, with four impressive towers in each corner. This unique architectural ensemble has been ranked as a UNESCO World Heritage site. The biggest Gothic palace in the world: tour 24 rooms! Museum space, priceless frescoes. Audioguide in 11 languages
http://www.avignon-tourisme.com/Monuments-et-Patrimoine-culturel/AVIGNON/fiche-4615596-2.html