CP Photo Gallery

(Photo: REUTERS/Beck Diefenbach)
The Space Shuttle Endeavour flies on the back of a 747 behind Bay Bridge in San Francisco en route to Los Angeles International Airport September 21, 2012. The space shuttle Endeavour, bolted to the top of a jumbo jet, took off on Friday from Edwards Air Force Base for a last airborne victory lap over California en route to its final frontier and retirement home - a science museum in Los Angeles.
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