I don't like to admit that I built this, and I ESPECIALLY don't like to admit that I applied to USSR with it... Ugh.
A 14 story tower with a training complex and two garages comprised of... You guessed it... 1x1x5s. It was built in V8 and consisted of close to 10,000 bricks. I later came back and replaced the 1x1x5s with 4x1x5s, and that cut it down to just over 4,000, but it still didn't help with the suck of the general building.
I'm working on what I consider a good house by my standards, and a slightly above-average house by the community standards, (I think). Kind of spammy as well, especially around the roof areas.
Edit: I think that was a picture of the converted 1x1x4 version, The 1x1x5 version was the same, just with a lot more bricks.