Looking for a perfect gift for that hard-to-buy-for architecture buff? How about a Lego version of Frank Loyd Wright's famous Falling Water building:
Or, if you prefer a gift that's more Chicago themed, check out the John Hancock Center or Sears Tower Legos (and thank you Lego, for still calling it the Sears Tower!). Sadly, there's no Pritzker Pavilion or Bean Legos as of this writing. Dare to dream.
Update: In other Lego news: check out the LEGO CAMERA.