Endeavour's farewell tour

A spectator takes a photo of the Space Shuttle Endavour as it flies on top of a modified 747 jumbo jet over the Golden Gate Bridge while traveling to Los Angeles on September 21, 2012 in Sausalito, 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: Justin Sullivan/Getty Images