Museum of the Former Bishopric

The Musée de l'Ancien Évêché is a departmental museum located in Grenoble, France and dedicated to the Isère heritage through the history of its Bishop's palace. Inaugurated in 1998, it is settled in the former Bishop's palace, near Grenoble Cathedral. The museum gives access to the remains of an early Christian baptistry and to a section of the vestiges of the Gallo-Roman wall in the basement of the building.

Source: Wikipedia