http://www.solardecathlon.org/

For three weeks in October 2009, the U.S. Department of Energy will host the Solar Decathlon—a competition in which 20 teams of college and university students compete to design, build, and operate the most attractive, effective, and energy-efficient solar-powered house. The Solar Decathlon is also an event to which the public is invited to observe the powerful combination of solar energy, energy efficiency, and the best in home design.

Exact dates of the 2009 event are:

• Oct. 08-16 — Teams compete in 10 contests
• Oct. 09-13 — Houses are open to the public
• Oct. 15-18 — Houses are open to the public
• Oct. 19-21 — Teams disassemble their houses.

It seems Frank Lloyd Wright was once called to Bagdad to design an opera house. View a very interesting page and some drawings of projects he sketched at the 1957 Bagdad Project