EAA AirVenture Oshkosh (formerly The EAA Annual Convention and Fly-In) is an annual gathering of aviation enthusiasts held each summer at Wittman Regional Airport in Oshkosh, Wisconsin, United States.
The event is presented by the Experimental Aircraft Association (EAA), a national/international organization based in Oshkosh. The airshow is seven days long and typically begins on the last Monday in July. The airport's control tower is the busiest control tower in the world during the gathering.
Misc
Links: en.wikipedia.org
By: kjfitz
http://www.wired.com/autopia/2009/07/airventure-control-tower