I live in a small apartment in one of the shadier (read, cheap) areas of the city. As such, I don't have enough space to store a great sculpture and I'm too lazy to assemble one each week.
That said, my "sculpture" is a brick wall that is in my backyard. Over the years the homeless people and vandals have broken it down so it's now actually a slight 4-tier wall...
10 gallons mash/lauter tun up top with my single kettle, an aluminum 7.5 gallon that came with my turkey fryer and my turkey fryter itself.

If you look close there's a big ol' mug of home brew there next to the MLT, a VITAL part of my setup.