Every October, hundreds of hot air balloons fill the sky above Albuquerque, often called the most photographed event on Earth. It began with 13 balloons in a mall parking lot in 1972, a stunt for a radio station's 50th birthday. A storm kept most of the other pilots on the ground. 20,000 people still came to watch. Today over 500 balloons fill that sky. The parking lot is long gone. The sky is still full.
