London is trickier to shoot from the air than most US cities. Unless you have a twin-engine helicopter (very expensive) you can only fly up and down the River Thames.  For this trip I had a look from a couple of tall buildings to get an idea of what it would be like. 

The City of London has some interesting new buildings, and the skyline has really changed since I lived there in the 90's.They also have great nicknames such as The Walkie-Talkie, The Gherkin and The Cheese Grater.  While many of the new buildings are within the square mile of the Financial District my favorite one isn't. The Shard is south of the River, and dominates the London Skyline. It would be great to get a similar shot of the Shard to the one I have of the Transamerica Pyramid in San Francisco. One of these days I'll have to bite the bullet and do an aerial shoot in London.

Tower Bridge and the Tower of London

The Shard and the Walkie-Talkie

The Gherkin and The Cheese Grater