Why do the streets in Marleybone take place on the rooftops. If you've been in Regent's Square, you know that the streets in Marleybone would have been better o the ground rather than on the top of the roofs. If it was on the ground there wouldn't be a sidewalk problem. Then again, the rooftops is more creative and makes more sense with the burgalars.
Have you watched Mary Poppins? That was based in London too and the chimney sweeps are on the roof. It makes the game more interesting than having all of the worlds on the ground.
