• Las casas más ecológicas del mundo
  • Las casas más ecológicas del mundo
  • Las casas más ecológicas del mundo
  • Students work on the roof of their houses during the 2009 U.S. Department of Energy Solar Decathlon on the National Mall in Washington
  • Students of Team Germany react after winning first place overall during the 2009 U.S. Department of Energy Solar Decathlon competition on the National Mall in Washington

Las casas más ecológicas del mundo