Christopher is standing on the deck of Texas A&M's "groHome." While the girls went shopping, Pat and Christopher headed to the National Mall to enjoy the 2007 Solar Decathlon, which joins twenty college and university teams in a competition to design, build, and operate the most attractive and energy-efficient solar-powered house. (Image taken with FinePix F10 at ISO 200, f2.8, 1/300 sec and 8mm)