The tower Toyo Ito (the building is named after its designer) is part of the Mahler 4 complex on the international business centre the Zuidas in Amsterdam. Together with its neighbor Viñoly it is one of the most striking and recognizable buildings so far. The building has several glass ‘windows’ or holes in it. The idea behind these voids is to enter the outside life into the building and to add light and space to the interior. The first 6 floors are mainly occupied with offices, for the 370 employees. The upper floors, in the second part of the building are reserved for meeting rooms. This way the employees can reach their workspace faster, while meetings are held in the most ‘elevated’ spaces.