Bosco Verticale (Vertical Forest) is an ambitious eco project in Milan, Italy, designed by architect Stefano Boeri. The project is comprised of two towers with giant cantilevered staggered balconies that permit fairly big trees to be accommodate, since there is a minimum of two storeys over every balcony. Basically, it's a vertical forest in the heart of a blooming metropolis.
The Forest Towers have a height of 364 feet (111 meters) and 256 feet (78 meters) and will host more than 900 trees on terraces. The structure was completed in the first quarter of 2012 and the project is currently proceeding with the construction of facades and facilities.
(thanks Miss Rare)