Worlds Busiest Control Tower Tour! Dan Millican & Christy Wong at EAA Airventure Osh2022 - Taking Off Watch in HD on YouTube! Share on Facebook! Dan Millican (@TakingOffDan) and Christy Wong (@PilotChristy) get to tour the FAA Control Tower at KOSH during EAA Airventure, the day after the big Sunday push. They also talk to the Ops guys who not only keep the controller's tech working, but design and manufacture their own ideas to help keep everything running smoothly.