Close to 1,200 participants throw their hats into the air inside a hangar, in an attempt to set a world record, as an All Nippon Airways' Boeing 787 Dreamliner plane (R) and a Japan Airlines' Boeing 777 plane are pictured in the background, at an event to promote the city's bid to host the 2020 Olympic Games, at Haneda airport in Tokyo August 25, 2013. The challenge event, organised by the Tokyo 2020 Bid Committee, ANA, JAL and Japan Airport Terminal Co., was held to aim for an entry in the Guinness Book of World Records for the most people throwing hats simultaneously. [Photo/Agencies]