AS-501. Apollo 4 Saturn 5 rocket in the VAB high bay. Still has the black upper roll pattern (like AS-500F) on the S-1C intertank skirt, which will be painted over in white before flight. The tops of the engine fin fairings haven't yet been put on and the CM seems to be getting lowered to top off the stack!
Photos of each of the six Apollo landing sites photographed from low orbit by NASA's Lunar Reconnaissance Orbiter. ALSEP stands for Apollo Lunar Surface Experiments Package. The astronauts' tracks as well as the rover and other items are plainly visible.