Canon's new tilt-shift lens—the glass you need to make amazing photos like this without Photosorcery—is an ultra-wide 17mm piece of kit. Also ultra-wide is its price: $2500. But just look at it. [Dvice]
I was going to say (rather snidely) that the reason you buy an expensive tilt-shift lens is for architectural photography, i.e., to keep parallel lines from converging (so the building looks "right"), not for a dumb Lilliputian gimmick as proposed by this article.
Then I went to the Dvice link and looked at the dozens of sample shots. Uh...stunning.
I think I'll just shut up.