Together with my graduation studio Masterplan Rijnkade was developed next to the existing city center of Arnhem. This masterplan is highdense and linked on main infrastructural routes, these conditions make the main aim of the plan - to create a sustainable city - possible. This plan crosses the river and it is at this point, that I designed a tower. The tower is a gateway to the city center. The tower makes the very ambiguous situation of a nature reserve next to a high dense city centre possible. The 150m high tower is a symbol for this new centre and its main aim: sustainability. The tower is Eco-Prop, ecological propaganda, it shows that green can be fun. Due to its location, the tower provides a form of escape from the busy city. The tower is a vertical route that connects all kind of active and passive forms of leisure. Staring with a gym at the bottom, while high up, far away from all city noises, a SPA is situated.