These are amazing shots of neighborhoods in DF, Distro Federal, otherwise known as Mexico City. It is the biggest* city on earth. These photos and many more amazing ones were taken by a helicopter pilot. A lot of wealthy folks take helicopters to get around town instead of cabs. Imagine that. This guy must have some incredible stories. He sure has a great eye.
(the greater metropolitan area had the second largest population, 19.4 million as of 2006; most populated city on earth in 1519, earns the biggest city on earth title.)