Places to go in London.

Bit late, what did you end up doing? I think the most "different" thing I've done there is going to the London Wetland centre. It's a bird-spotting centre with cafe, some weird gardens, towers to spot birds from etc. I also like strolling around in the parks, looking at bird, squirrels and weird people. Haven't been to Kew Gardens yet, but I'd love to go.