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The parish church dates from the 12th century and, like the mighty church tower, is built in the Romanesque style. In 1336/61, renovations in the Gothic style were begun under Prior Pierre de Pratis, but this was limited to the choir, which is not entirely in line with the rest of the building. A marble sarcophagus decorated with reliefs from the 4th century was reused as the altar.
The remains of an aqueduct used for irrigation purposes.
The city gate and remains of the city fortifications from the 15th century.
ND de la Roche
Also built in the Romanesque style in the 12th century. The choir was later rebuilt in the Gothic style, the wooden portal dates from the Renaissance. A staircase with 262 steps leads to the chapel, which is visible from far away over the town. From the terrace in front of the chapel there is a beautiful view over the town down to the Lac de Sainte-Croix.