When Glanum fell on hard times during the late 3rd century many of the inhabitants seem to have just moved up the road a bit. About a mile away at a road junction was some kind of settlement. I have seen it described as a villa, a road stop or simply "an agglomeration". Which basically means nobody knows for sure and there have not been any serious excavations.
In part this would seem to be due to a general lesser interest level in late Roman activity in Gaul. And of course there is an intact medieval town sitting on top of whatever Roman remains may exist at St. Remy.
The most notable medieval resident of the place was Nostradamus, who in 1503 was born here:
According to my trusty copy of The Roman Remains of Southern France there are two sites in the central portion of St. Remy where artifacts from Glanum are on display. The first, the Musee des Alpilles seems to be a general purpose museum with some archeology stuff. It is in the Hotel de Montdragon, Place Fevrier if you have time for a visit. Across the square is the Depot Archeologique, housed in the delightfully named Hotel de Sade.
Yet another brief aside. In this context "Hotel" meant not an inn with lodging, but the often ornate "in town" houses of wealthy aristocrats. And yes, the Hotel de Sade was owned by that family if only by a bunch of distant relatives. It now houses a cafe which looks quite nice thank you.
Now I started wandering about adjacent streets looking for late Roman work that was not in the guidebook.
And another cut down archway. What was going on here? It recalls the arch seen behind the Hotel de Sade, but the larger arch has been chopped into by a smaller arch, a modern door and two windows on different levels of the building!