If your trip to Philadelphia is all locked in but your itinerary is looking a bit empty, we can give you a few hints and tips.Liberty Bell Center deserves more than just a quick drive-by. Hop out of your car and take your time getting acquainted with this iconic sight while you're in Philadelphia.Take in the best that this city has to offer by adding Reading Terminal Market and Ben Franklin National Memorial to your travel itinerary. If you have an extra day up your sleeve, have a look at University of Pennsylvania and Philadelphia Zoo too.Not too far from the city center, Philadelphia Museum of Art is one sight to consider putting on your to-do list. If you still have room on your travel itinerary, Please Touch Museum and Adventure Aquarium will keep you occupied as well.