Check out these cool landscape photos by Olivo Barbieri. He takes photos of landscapes, and then modifies them to make them look as if they were pictures of tiny models. They give a very curious case of perspective.
Addendum: Juan read more carefully than I, and explains that these are shot with a tilt-shift lens. I'm even more impressed.
Addendum2: You can get some more examples of this tilt-shift wizardry on this Japanese website.
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