It is a huge solar powered waterfall standing 105m above sea level, designed by Swiss architecture firm RAFAA for 2016 Olympic Games. Named the Solar City Tower, the building is equipped with solar panels, the solar energy to pump seawater to its top, and resulting falling water spins turbines that produce energy during the night. For some occasions, the tower can transform into an urban waterfall the designer calls "a symbol for the forces of nature." RAFAA expect to fill the building with an amphitheater, auditorium, cafeteria and shops. This solar city tower even includes bungee jumping and a “glass sky walk” on the very top."The aim of this project is to ask how the classic concept of a landmark can be reconsidered. It is less about an expressive, iconic architectural form; rather, it is a return to content and actual, real challenges for the imminent post-oil-era. This project represents a message of a society facing the future; thus, it is the representation of an inner attitude. Our project, standing in the tradition of "a building/city as a machine", shall provide energy both to the city of Rio de Janeiro and its citizens while using natural resources."