There are 3 important cemetries in the inner Paris area: Cimetière Montparnasse, Cimetière Montmatre and Cimetière Père Lachaise. You can visit them and look for the graves of certain important persons. We visited only Cimetière Père Lachaise, where you can find i.e. Edith Piaf, Frédéric Chopin, Yves Montant, Simone Signoret or Jim Morrison. To find them easily, there is a map near the entrance, showing the fields and marking the position in the field where to find whom. You can walk hours and see different kinds of graves and monuments. Some of them are quite old and are obviously still used.
Stay tuned, there will come more and also have a look at the previous posts, if not already done.