You can learn a lot of information from going on a tour of a medical facility. Check to see if Childrens Hospital of Philadelphia is open to the public while you're in town.
If you're spending a while in West Philadelphia, Children's Hospital of Philadelphia is a fine place to kick off your sightseeing. This health care institution is one of many attractions that'll keep you on the hop here. Liberty Bell Center, Independence Hall, and University of Pennsylvania are also ready to be explored nearby.