I've become a little obsessed with the history of the Space Race recently. This has mostly been brought on by two excellent documentary series, the predictably named "Space Race" by the BBC and "Moon Machines." Did you know that the entire basis for the space program started with the Nazi built V2 rocket? Or that the Russians crashed a lunar probe into the moon while Armstrong and Aldrin were still on the surface? I certainly didn't, but I was excited to find out.
If you have the time or inclination I recommend you give the documentaries a watch. It's really inspiring to see how the efforts of so many people lead to some of our more amazing achievements.
Basically, learning about this stuff makes me ask one question: Can we go to Mars already?