This interesting image is of my office building in Sydney, as shown in Google Earth. You can check it out yourself by searching for Corner Castlereagh and Goulburn Streets, Sydney, NSW, Australia.

Evidently two photos taken at different angles have had to come together to make this odd shot. My question is: how do they do it? Presumably there's not some guy sitting there in front of Photoshop deep-etching buildings, so what sort of logic does it take to blend two completely skew-whif photos like this?

Click the pic to view close up in a new window.