2nd-storey garage 'engineering mistake'

I think this has already been discussed, but I can’t seem to find it now. This garage is often shown as an ‘engineering mistake’ or ‘What were they thinking?’ funny picture. In reality, it’s just not finished, and there are pictures of it with the driveway installed.

Can someone point me to the thread I remember (if I remember correctly), or to a picture of the completed structure?

http://boards.straightdope.com/sdmb/showthread.php?t=818679

Thanks! :slight_smile: