About 1.5km southwest of the bastide town of Montréal du Gers are the excavated remains of a 4th-century Gallo-Roman villa, once part of the agricultural estate of a Roman aristocrat. Archaeologists so far have revealed the villa's baths, outbuildings and mosaic floors, still bright despite centuries of being buried underground.
Admission includes entry to the small museum within Montréal's tourist office, which displays artefacts from Séviac – including amphora jars, jewellery, scupltures and more mosaics.