From hot-air balloons to jets, no other location has a more diverse aviation history than the San Francisco Bay Area. Aside from private and commercial airline operations, the area has housed the NACA/NASA Research Center, the prestigious Boeing School of Aeronautics, and the dirigible USS Macon. It is currently the center for antique aircraft in Northern California and has been the site of numerous flight records, including the Dole Race and Amelia Earhart's circumnavigation attempts. San Francisco was also home to the pioneer Pan American Airways flying boat, which opened the Pacific Ocean to air travel.