Future exhibit - your input

The Museum of Discovery is designing a new exhibit that will be unveiled in January 2012. The gallery "Earth Journeys" will include a puzzle that is a map of the Arkansas River. What are some points of interest that you'd like to see? 

As you know, the Museum of Discovery is undergoing renovations (WE ARE STILL OPEN THROUGH APRIL 2, 2011!) that will include all new galleries and exhibits. We can't promise your idea will make it into the final exhibit design but we'd sure like to know your thoughts!  Thanks in advance!!