I work right next door to the "Inversion House". That is the old building for The Art League of Houston. As they were getting ready to tear down that building, they decided to make an "art object" out of it, and as they took off the wood siding, they used it to construct that vortex-looking thingie. If you could see the sides of the house, you'd see the bare wood with no siding.
Here's a shot I took of it before they tore it down:
It is now a metal building, and there is a coffee house in the building called Inversion Coffee House in tribute the the "Inversion House".