The Franklin Institute is a great attraction for Philadelphia. They have some wonderful exhibits and are always adding new items. There is so much to see you should really have 2 days to spend there. The tickets to get in are a bit pricey but if you're in the area when will you ever get back? Its well worth the money. The Tuttlemen Omniverse theature is great too. Ive seen quite a few shows there and not forget about the planetarium, They always have light shows and concerts. I also suggest you use public transportation as they do charge to park.
more