One of the most interesting places I visited in London was the headquarters of the Masons in London. It's a very stately building, filled with a very matter of fact display of decorated ceremonial bibs, medallions, and ancient sepia-toned photographs important looking white men with swords. They do not allow photographs anywhere in the building, so they took my backpack and camera. On the way out, however, I took a dump in an ancient masonic toilet where the most powerful men in Londontown have shat.
This is the door knob of that bathroom. Exciting, eh?