The Sanctuaire de la Fontaine (English: Sanctuary of the Fountain) is an ancient site in the city of Nîmes, France.

A probable place of worship of the first human settlement around the source, this site is located today in the heart of the Jardins de la Fontaine.

[1] In this "Augusteum" in addition to this emperor's altar arranged in the center of a nymphaeum, a theater, and a curious vaulted building called the “Temple of Diana”.

[2] This type of sanctuary is quite rare, especially since contrary to what one might imagine, it was not ordered by Augustus, but was probably built by the local populations in a show of gratitude for the favors granted to the city.

Its obligation, along with all the other cities conquered by Rome simultaneously made it possible to unify the Empire by imbuing the populations with a common mentality.