tilt-shift photography (miniature faking) is a pretty sweet way of taking a photograph of a life-size location or object, and manipulating it to give an optical illusion of a photograph of a miniature scale model, such as the Eiffel Tower above.
altering the focus of the photo in Photoshop (or a similar program) simulates the shallow depth of field normally encountered with macro lenses, making the scene seem much smaller than it actually is.
in addition to focus manipulation, the tilt-shift photography effect is improved by increasing colour saturation and contrast, to simulate the bright paint often found on scale models.
most faked tilt-shift photographs are taken from a high angle to further simulate the effect of looking down on a miniature. the technique is particularly effective on buildings, cars, trains and people.
anyway, here is a tutorial on how to achieve said effect.
my first attempt: