Pierre la Chaise, Paris. It's a wow! And if you want to scare yourself silly, plan to visit at dusk, just before it closes. Better yet when it's blustery/windy/rainy as well. Edit Piaf, Chopin (? do I remember this correctly?) &of course, Jim Morrison are among others resting here.
Ajijic, Mexico, during Day of the Dead. Magic!
Not exactly a cemetery, but the totally over-the-top shrine to Di &Dodi on the ground floor of Harrod's at the foot of the Egyptian escalator.
And, not to be ghoulish, but the pet cemetery in the far back of my garden, where I can go when I want to recall the steadfast & unwavering love of 3 of my beloved canine companions.
Gail In Eugene