4. Green-roofed high school, France

Green-roofed high school, France  [CRIOnline.com]

The Marcel Sembat high school in Sotteville-les-Rouen of France is situated next to a park and almost disappears into the trees and grass of its surroundings.

The extension projects include a restaurant, students' dormitories, staff housing and workshops. Their green, waved roof will provide natural heal insulation.