If you are looking for a day activity in the Laurel Highlands area of Pennsylvania (Somerset area) Living Treasures Animal Park is definitely the place to go. There is also a location up near New Castle, PA as well, but I have never been to that one, it is closer to go to the Donegal / Jones Mills Location.
Most of the exhibits within this park are hands on, petting areas. There are a few areas like the Lions/Tigers that are enclosed for safety reasons.
Occasionally throughout the day and on certain days there are different events throughout the park as well. The price to get in is fairly reasonable.
This is one of our favorite places to take our children, no matter how many times we go it never gets old!