The Saturn V rocket assembly at the Kennedy Space Center museum in Cape Canaveral, Florida is literally breath-taking to behold up close. This image depicts part of an actual launch vehicle that was built but never launched due to the budget cutbacks in the early 70's. The entire assembly is horizontally suspended over the length of the building. This perspective is of the gold top of the liquid hydrogen tank in the second stage, and the single J-2 engine of the third stage. To give some perspective, that J-2 engine is 11 feet (3.3 meters), and the diameter of the 2nd stage is 33 feet (10 meters). This single J-2 engine powered Apollo out of earth's orbit and onto a trajectory to the moon, burning it's supply of over 300,000 gallons of hydrogen and oxygen in just 6 minutes. (Can you tell I'm endlessly fascinated?)