M.C. Escher Art Recreated Using LEGO Bricks (5 Structures) (mymodernmet.com)

It's nice to see this referenced, but in essence this is a write-up/rip-off of Andrew Lipson's web site:

http://www.andrewlipson.com/

An index page of his Lego work is here:

http://www.andrewlipson.com/lego.htm

This submission really looks more like blog-spam, and I refer you to the guidelines:

  In Submissions
  ...
  Please submit the original source. If a blog post
  reports on something they found on another site,
  submit the latter.

From http://ycombinator.com/newsguidelines.html