In context of overlay "Places" – l’Hyppocampe (Gift Shop) – https://osm.org/node/5193941554 via StreetComplete 57.4:

Now it seems just a kitchen. Literally. Probably, the kitchen of the brasserie La Samaritane.

Attached photo(s):
https://westnordost.de/p/214743.jpg
https://westnordost.de/p/214744.jpg