That is a very interesting distortion of reality. Great work! What are you actually taking a picture into??? a wet car or something?
The building is City Hall in London reflected in one of the big black globes outside it. Normally the globes are too dull, but every so often they're polished as here:
You can make out the globes in context at centre right here:
Anarchist demo against Boris Johnson the evening he was first elected Mayor of London in 2008.