The most celebrity-filled but certainly not oldest cemetary in Paris. This is the place to find the last "resting" places (hard to rest with so many tourists around...) of artists like Oscar Wilde, Jim Morrison, Frédéric Chopin and more. Enjoy the slightly disturbing experience of looking for famous graves with a map (maps available in the nearby shops). Altough this cemetary certainly attracts a fair amount of tourists, it's not crowded the way places even more famous are. So for something touristy but just a bit different, why not le cimetière du père-lachaise?
Last note: if you enjoy old cemetaries, avoid this one, as it is one of the youngest cemetaries in Paris. Not a lot of old, creepy crypts to be found here!
The grave of Jim Morrison at Père Lechaise. The worlds most celebrated whole in the ground made for a rock and roll bastard. Go see Oscar Wildes grave around the corner instead.