Apollo
This was as far apart as I could easily move my arms - imagine how hard it was in a suit. (Huntsville)
The Original (JSC)
Meteor Crater, Arizona (Go! See! Spend Money! These people are very grateful for their jobs and the tourists)
A container for The Collective (if you don't know, don't ask)(I think this was at the Kansas Cosmosphere, but I'm not certain. Could also be Huntsville or JSC)