Dominated by its majestic quadrangular bell tower, Cathédrale St Pierre de Condom, rebuilt between 1505 and 1531, is one of the last large buildings in the Gers constructed according to the Gothic traditions of the Southwest of France. The large nave has Flamboyant stained-glass windows and the ribs of the vaults are set around historiated keystones. The trapezoidal cloister, attached to the north side of the cathedral, is worth seeing.