Green School in Bali, Indonesia is giving its students a natural, holistic and student-centered education in one of the most amazing environments on the planet. All buildings are constructed entirely out of bamboo, down to the furniture. The main focus is on self-sustainability, with solar and hydro-power, organic gardens, recycling and low carbon impact.This is the main building, the "Heart of School", which consists of 3 interconnected, circular buildings, each 3 stories high! The U.S. Green Building Council’s Center for Green Schools awarded Green School the title “2012 Greenest School on Earth“

http://www.greenschool.org/