The town is renowned for its Roman architecture. Its Roman theatre, the Théâtre antique d'Orange, is described as the most impressive still existing in Europe. The fine Triumphal Arch of Orange, theatre and surroundings were listed in 1981 by UNESCO as a World Heritage Site. At Roman times, Orange was a capital of northern Provence and was regarded as "Miniature Rome".

Tarquinia is believed to be founded in 12th century BC. It was home for Tarquin kings of Rome long before the Republic was created, and thus received its name. It was a political center of Etruscan league of cities. So it goes without saying that antiquity is a major attraction of the town. Most visited site is necropolis and is painted tombs. Another highlight is the Museo Nazionale Tarquiniense that has an extensive collection of Etruscan artefacts. Tarquinia is a convenient day trip from Rome.