Two NASA space shuttles, each on the road to retirement, posed nose-to-nose

 Space Shuttle Endeavour (R), leaving the Orbiter Processing Facility on its way to the Vehicle Assembly Building (VAB), passes Space Shuttle Discovery at Kennedy Space Center August 11, 2011 in Cape Canaveral, Florida. Space Shuttles Endeavour and Discovery switched buildings as they are being decommissioned with the end of the Shuttle program. 

Space Shuttles Discovery (R) and Endeavour go their separate ways outside Orbiter Processing Facility-3 (OPF-3)