It's considered an achievement to host the Olympics for your country, but often the host city is the least excited about the whole undertaking. The Floating Olympic Complex proposed for the Rio de Janeiro games in Brazil aims to solve the problem of later unused buildings in these incredible inverted structures.
Pouring enormous amounts of money into new sportsplexes, residences and offices often amounts to underused infrastructure after the sporting events are over and the internationals head home. Andrew Chow Wai Tat, Tao Huang and Xue Liang Zhang of China and Malaysia received an honorable mention in the 2011 Skyscraper Competition for their proposal to leave existing urban fabrics untouched, thanks to these oversized mushroom structures. The Floating Olympic Complex will house stadiums, arenas, tracks and fields during the tournaments, and will later be used for housing and offices.