The Cathédrale Notre-Dame-et-Saint-Véran is a former cathedral — the diocese was suppressed in 1801 — that still serves as the main church of Cavaillon. The building began in Romanesque style in the 12th century, with a particularly fine apse, and was expanded with Gothic elements over the following two centuries. The combination works well, giving the interior a spatial variety that a single-period church would lack.
The cloister, attached to the south side of the cathedral, is an intimate 12th-century structure with carved capitals worth pausing over. The cathedral is usually open to visitors; Mass continues to be said here, which means the building retains its purpose rather than feeling like an exhibit.