Back when we lived in London in the 80s and we had no money, I once did a tour around Highgate Cemetery that was free because it was done by volunteers. Lots of really interesting pointing out of various symbols on the gravestones and a walk around the vaults, but nowhere near that one.
I rather like graveyards. Cool.
Oh, they are Great places to visit. Lady H. Used to live in a flat next door to Abney Park cemetery in North London. Very faded as you might expect but it attracted a contingent of Alesteir Crowley enthusiasts. I think that the Booths who were the founders of the Salvation Army were buried there