Tranquility Base: comparison of Lunar Orbiter (1967) and LRO (2009)
Two views of Tranquility Base - one is two years before Apollo 11, and the other is forty years afterwards.
GonetoPlaid's website: http://apollo.mem-tek.com/
Astrobrant2 also made a video on this subject: https://www.youtube.com/watch?v=Z-J9WEtHXRA