Completely in ruins, the Villemartin chapel was built between the end of the 12th and the beginning of the 13th century. A fine example of Romanesque architecture, it is accessible through a portal with a polylobed archivolt resting on two columns with sculpted capitals.
The Villemartin chapel was originally arranged in three bays, the first two making up the nave and the third the sanctuary. Rectangular in plan, it ends with a flat bedside table with three ogival windows. Originally, the building belonged to the order of the Hospitallers of Saint John of Jerusalem. The ruins are today classified as Historic Monuments.