Pere Lachaise Cemetery (Paris, France)

The famous Parisian cemetery, chock full of literary luminaries such as Oscar Wilde, Moliere, and, er, Jim Morrison. Also of morbid note, in the eastern corner of the cemetery is the Mur des Fédérés, against which 147 Communards were shot at dawn on 28 May 1871, after their final resistance among the graves the night before. They were buried where they fell against the wall. The official website has a FANTASTIC virtual tour, which is the next best thing to being there. (Special thanks to Merrie for the suggestion.)