The architecture around London is really quite fascinating. Old structures are juxtaposed against ultra modern designs all over the place. This photo, comparing the egg-shaped city hall to Tower Bridge helps to get this point across.
I took this photo between overnight flights on my way to Capetown. I managed to get my camera set up on my tripod all set up ready to take bracketed photos when I saw a security guard approaching out of the corner of my eye. As he got closer I hit the shutter button and as I spoke with him my camera worked away getting what I needed. Once I convinced him I was just a tourist he was satisfied and asked me not to take photos of the reception in the building.