Endeavour's farewell tour

Endeavour, on top of NASA's Shuttle Carrier Aircraft or SCA, flies over the Griffith Park Obervatory on September 21, 2012 in Los Angeles, California. The space shuttle Endeavour did a 4-1/2 hour tour over California landmarks before heading to Los Angeles International Airport where it will be prepared to be moved to its new permanent home at the California Science Center in downtown Los Angeles.

Credit: Sandy Huffaker/Getty Images