Each year, Michigan State’s College of Veterinary Medicine hosts an event that allows the public to tour the school and hospital. It’s full of displays, demos, and all kinds of really amazing stuff. For example, you can watch a horse run on a treadmill or see how laparoscopic surgery is performed.
I HIGHLY recommend taking the family to Vet-a-Visit. It’s a great experience, and it’s free admission! Details can be found at the web page.