Playing the tourist

Up in London for the Christian Resources Exhibition.  That was good, but I also enjoyed exploring a bit of the Thames.  I haven't been able to visit London for several years now, and quite a lot has changed since I used to live there.  Canary Wharf made me gawp, but I've chosen something a bit more iconic for my main photo.  Pity about the building works, but I gather that the building is beginning to crumble rather dangerously.