One Day All Buildings Will Look Like This
The Benasque Science Center is a self-sustaining building that serves as a conference and research center, and it's also where many worldwide scientific meetings are organized. During these meetings it's common to see researchers writing on the exterior slate walls, like the ones on the inside. They're also in a lot of the rooms. 'http://www.minube.com/fotos/rincon/745291/6012161'