Forty-six years ago this week, the Apollo 11 mission took three men into outer space and two of them, Neil Armstrong and Buzz Aldrin, were the first humans to set foot on the surface of the Moon. It was a great achievement not just in American history, but in human history, marked by Armstrong's memorable phrase "That's one small step for [a] man, one giant leap for mankind." The photographs of that mission remain among the most recognizable in recent history. Of the photograph of Aldrin taken by Armstrong on the lunar surface taken, Aldrin tweeted this week: "I have 3 words to describe why this photo Neil took of me is so iconic: Location, location, location." The final photograph is not as famous. It is a photo uploaded by a Wikimedian taken by his grandfather of his mother as a young girl during this historic moment, a great example of how ordinary Wikimedians can contribute to documenting their world and its history.