But I believe it qualifies for psychogeographical bragging, at least.
This is where I spent part of yesterday:
http://www.towerbridge.org.uk/bascule-chamber-concert/ (Google image search "bascule chamber" for more pretty pictures)
You can all be jealous of me now.
This will probably be the only time in my life I listen to a John Cage aria with a 1000-tonne weight suspended over my head.