Japanese children play at Nishi Rokugo Koen in Tokyo on September 6, 2009. The &quot;Tire Park&quot; is filled with big tires in every combination, like robots, dragons, tire swings, bridges, tunnels, montains and slides. Approximately 3,000 old tires are used to set up the playground covered completely with sand. (Photo by Laurent Benchana/Nippon News)