The temple is well-preserved thanks to its transformation into a place of christian worship and wich now is the nave of the church Saint-Nicholas. It is a Gallo-Roman temple (fanum), with a central worship room circled by a gallery with columns. The podium is reinforced by buttresses on the west and on the south. The entrance was at the east. Old graves allowed to discover annex buildings, including maybe a theatre or a religious amphitheatre. In 2003, two new temples and a third building have been discovered by aerial photography. One of these photographies is visible in the book Vu du ciel (see Bibliography).
Swiss topographic coordinates: 541'108, 176'311