This is cool. The General Shale Brick Museum of Natural History in Gray, Tennessee has on display a 4 to 7 million year old rhinocerous. The museum is getting very good reviews:
The East Tennessee State University and General Shale Brick Natural History Museum and Visitors Center at the Gray Fossil Site opened in August. The 33,000-square-foot facility is filled with all manner of ancient animal sounds, dramatic displays and interactive exhibits. This kid-friendly spot offers lots of buttons to push, sand to dig in and entertainment for busy little hands.
Here is a photo of the rhino, courtesy of the Tennessee Department of Tourist Development.