129 Rue de Grenelle
Paris - Île-De-France, France

3 single token machines are in the Dome.

1 single token machine is at the Kassa.

1 single token machine is behind the glass door opposite the cloakroom.

1 single token machine is in the museum of the "plans reliefs"

9/18/21: I was looking for the machine and asked the staff of the Tour Montparnasse. I was told that it used to be there but it has been removed. However, I didn't find the Sacre Couer and the Les Invalides ones either, so they might have suspended all of them because of the pandemic (hopefully temporarily).