GreenRoof Fukuoka, japan

"In Fukuoka City in Japan, they have an amazing building called “ACROS Fukuoka” with two very distinct sides: one side looks like a conventional office building with glass walls, but on the other side there is a huge terraced roof that merges with a park. The garden terraces, which reach up to about 60 meters above the ground, contain some 35,000 plants representing 76 species. A huge semicircular atrium and the triangular lobby provide contrast to the greenery, in this space is a symphony hall, offices and shops. " photo and info from swye.net/2008/02/25/the-top-5-benefits-of-green-roofs/