This collegial church, dating from the 12C and partly rebuilt in the 14C, has preserved its attractive Romanesque doorway, as well as its nave and Provençal-Gothic choir. Inside the church, don't miss the Baroque chapels, paintings by Mignard and Parrocel, the tomb of St Martha (an early Christian sarcophagus dating from around AD 320) in the crypt, and, in the Chapelle St-Lazare, a 15C bas-relief depicting the resurrection of Lazarus.