Despite unique identities, geographic spread and differing economies,cities all over the world are being challenged by the same mega trends.With more than 60% of the world population predicted to live in cities by 2030we are asked to develop sustainable strategies for the future.There is no doubt that the density of cities will increase and therefor the cities fabric will grow vertically.But with reaching a certain height, towers are facing problems:_height is isolating: towers are monuments elevating the cities population form its urban grid. At the height of towers, ones experience becomes isolated from the public and urban conditions._height is dangerous: exiting a highrise in case of an emergency (natural or manmade catastrophes for instance) is facing serious difficulties._height is insufficient: when it comes to getting down by elevator 50+ floors for an hour-long lunchbreak and going the same way back later on, towers get inefficient with a certain height.the NYBILLBOARD:The proposal seeks for a way to add a new horizontal layer to Manhattan.An elevated link between towers, separated from traffic and noise, filledwith public functions, bicycle lanes and walkways.The groundarea covered by towers will be given back to the public by integrating its roofs to the grid of linking walkways, elevated gardens and public facilities and, as a unique aspect, it introduces public life into the skyline of Manhattan.NYBILLBOARD is an accentuation of this new layer on a strategic important site.Located as a gateway to Brooklyn, Liberty and Staten Island the NYBILLBOARD serves as an attractor for Manhattan, as „Manhattan‘s lobby“, from where u getelevated to the new urban level.The spacial program on one hand and parameters like view of surrounding buildings, sustainable aspects and formal questions ("how to design a non-shape-driven icon in addition to manhattans skyline), the tower should face Manhattans urban fabric horizontally.Cars from an integrated Carshare-system get also charged with the energy produced by the building and so become part of the energy grid of NYBILLBOARD.