Cantilevered on the side of a 45-degree slope in Suffolk, England and designed by the Dutch firm MVRDV, The Balancing Barn has won a 2011 design award from the Royal Institute of British Architects.
It was built as a rental property, available through LivingArchitecture, and sleeps 8 apprently. Don't know if the pictures do it justice, def' check this this interview and video with architect Winy Maas of the responsible firm MVRDV. Aimed squarely at media types/wallpaper readers no doubt and verging on stuff white people like sure (cue Eames rocker in every room), but I wouldn't kick it out of bed for eating crackers... The glass "carpet" takes it to 11.