The Experimental Aircraft Association (EAA) AirVenture Oshkosh is one of the largest general aviation airshows and exhibitions in the world. Pilots and plane owners from all over North America make an effort to fly into Wittman Regional Airport (OSH) in Oskhosh, Wisconsin, where the event is held. The large number of attendees who choose to fly into the event make the Wittman Regional Airport the busiest airport in the world during the event.