CaixaForum, Madrid, Spain
A renovation of an 19th-century electrical plant into a social and cultural center at the center of Madrid’s museum district has a living wall (designed by Blanc) that spans about 1,500 square feet and features some 250 species of plants.
But this stunning wall comes with a hefty price tag: Blanc told the New York Times that his gardens cost around $680 per 10 square feet for materials alone.
