I recently went up around Sydney in a helicopter taking photos from the sky of the little city below. I’ve had a play at what is called “Tilt Shift” is actually the a type of camera which can be used to produce the affect shown below but these photos use the digital equivalent which is to lens blur the bottom and top of the photo. The reason the images look like tiny models of the real thing is because your eyes are being fooled. Normally when you look at something close up and at an angle things further away look blurred and so do things closer, checkout this article at wikipedia about the Scheimpflug Principle for more info.
The Manor, Mosman
West Esplanade, Manly
Kingsford Smith Airport – Boeing 747 and MD-11 (or 10)