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.

The building was constructed on the last remaining green space in the city center, so the architects, Emilio Ambasz & Associates, created a design to preserve the green space as much as possible, while still fitting in a large office building. In addition, a green roof reduces the energy consumption of a building, because it keeps the temperature inside more constant and comfortable. Green roofs also capture rainwater runoff, and support the life of insects and birds.