The Church of St. Similien, Nantes is an ancient church, in the Hauts-Pavés district of Nantes, France. It is dedicated to Similien of Nantes and is located on the northwest side of the Place Saint-Similien.
Wikipedia https://en.wikipedia.org/wiki/Église_Saint-Similien
Coordinates 47°13'13.61" N -1°33'34.036" E