London!

[countaleph]

Hi, this is kind of an odd request, but I'm currently studying abroad in London (I'm from Chicago), and my class has been doing a bunch of walking tours, and I was wondering if there are any good places for Good Omens fans to go visit.

I remember that Crowley and Aziraphale went all over London, but I don't have the book with me, and I can't remember where they go. :(

Help?