Denis Doyle

Travel

MADRID, SPAIN - JUNE 22: A boy rests on the wooden terrace of the solar powered house of the University of florida on June 22, 2010 in Madrid, Spain. Sixteen universities from around the world are competing with their carbon-free solar powered houses in the 10-day 'Solar Decathlon' in Madrid, Spain. (Photo by Denis Doyle/Getty Images)
MADRID, SPAIN - JUNE 22: A boy rests on the wooden terrace of the solar powered house of the University of florida on June 22, 2010 in Madrid, Spain. Sixteen universities from around the world are competing with their carbon-free solar powered houses in the 10-day 'Solar Decathlon' in Madrid, Spain. (Photo by Denis Doyle/Getty Images)