I'm going to be visiting London in a few days for a bit more than a week. I've got a couple of destinations in mind, but I'm curious as to whether any of you all have some spots that I ought to go see! I've been once before in a real touristy fashion, hitting most of the main spots (the Shard, Big Ben, so on), but I'd like to get a taste of the weirder stuff: classic occult spots, art installations/graffiti, street events, freakish museums/curios, abandoned estates, cursed or haunted places, so on. Leaving the city should be no problem. Post your oddities, please!