This abandoned Futuro House is very cool. Located northeast of Dallas, Texas, near the towns of Royse City and Quinlan, off Highway 276.
For general Futuro House info, check out this site: thegrumpyoldlimey.com/pages/Futuro-Royse-City-Texas-USA.html
Specific info about the Royse City Futuro House can be found here, thanks to Simon, who does a great job of providing updates: thegrumpyoldlimey.com/pages/Futuro-Royse-City-Texas-USA.html (He also included this photo of mine on the page. Thanks, Simon!)
For general info, see also Wikipedia: en.wikipedia.org/wiki/Futuro