Just outside of central Paris lies a private vampire museum run by author/lecturer Jaques Sirgent. Located in the suburbs (14 Rue Jules David 93260 Les Lilas, France), this unique space holds a number of interesting undead artifacts, from books to memorabilia, to photographs and pop culture pieces--you name it. For a nominal fee, Sirgent hosts a lengthy, engaging chat about vampire folklore, and speaks to specific parts of his collection. (Sirgent is bilingual, and will speak in either English or French, depending on who's in attendance.)
If you're a vampire fan and heading to Paris, you should definitely make this part of your trip. Here's the website for the museum: http://artclips.free.fr/musee_des_vampires/musee-homepage.html
Here are some photos from my recent visit: