The countdown of the "Top Ten Most Fascinating Artifacts in the Hall of Space Museum" begins with the Lunasphere from the Soviet Union.
When I decided to do a top ten list, I thought it might be a good idea to seek input from my fellow Cosmosphere employees. So, I sent out a little email to twenty people asking for their top ten. When I dissected the responses, I had 45 different artifacts on the various lists. It was obvious to me that this approach would not work. In the end, the list is mine and you are free to argue with it or agree wholeheartedly. I would prefer the latter of course.