WebUrbanist.com

This is a link to another blog that's in my Google Reader. This guy has some really cool posts, one of which I think you would really enjoy: 3D Architectural Illusions: Amazing Paintings, Murals, and Mosaics

The post I've linked you to is a collection of 3D paintings, murals, and mosaics that can be found on the side of buildings, walls, the ground, or the bottom of a pool. They're really neat and I wonder if they are as enjoyable in person as they are in a photograph.

You at least have to check out this post and if you like what you see, consider subscribing - he puts out some really good content.

Enjoy!