Right through a rainy windshield the latest addition in the field of Dutch architecture. The recently completed building "Rotterdam" by Rem Koolhaas OMA office in Rotterdam. These blocks contain separate office spaces,residential apartments, hotel and conference facilities, restaurants and cafes. Workers and residents share the conference,sport and restaurant facilities. With a total of 162.000 m² , high of 150 m and broadness of 100 m the office called this a vertical city.