The Vestiges (traces) of the Gallo-Roman wall are the remains of a fortification, constructed in Grenoble, France (formerly called Cularo) at the end of the 3rd century, under the reign of the Emperors Diocletian and Maximian.

The two doors of the surrounding wall were built on stone blocks reused from previous buildings such as funerary monuments.

Close to the foundation of the Viennoise door, inscriptions can be found on the stones, which attributes them to earlier funerary monuments.

This defensive structure had a ditch that was full of water, which linked it to the Isère (river) to form a protective moat.

[3] Prior to the construction of the wall in the end of the 3rd century AD, the Gallic city of Cularo (Grenoble) was surrounded by a fence and a ditch.

In the 3rd century, the city was weakened by the invasion of barbarians, so the Gallo-Romans built a surrounding wall, under the rule of the Emperor Diocletian.

Cularo appears on the Tabula Peutingeriana, but in the Latin version of Cularone In 1963 an appreciation of the structure of certain vestiges gained popularity.

[8] Located in the historical center of the city, close to the Grenoble Cathedral, the Musée de l'Ancien Évêché is now home to the main sources of public information on the Vestiges of the Gallo-Roman Wall.

Jacques-Joseph Champollion-Figeac, Nouveaux éclaircissemens sur la ville de Cularo, aujourd'hui Grenoble, J.B. Sajou, Paris, 1814 Woolf, Greg (1998).