Favorite thing: Every where you look in Philadelphia you will find sound wonderful and very large sculptures, statues to Clothes pins. This town is full of art and history to be explored, so much to see here you may want to make a few days of it.
Favorite thing: There's the Liberty Bell, the LOVE monument and of course, the Columbus Obelisk down at Penn's Landing. All over town, you'll find monuments, historical markers and pieces of interesting art. Philly, isn't nearly as big as New York and the advantage of that to me is that it's much more manageable. You can spend a weekend here and actually leave with the impression that you have a handle on the place. Don't get me wrong, there's enough to do for a lifetime in Philadelphia, but you just won't feel so overwhelmed like you do in some larger cities.