I'm planning to visit Philly for the day during a stay in New York and plan to take the train. How far from the main attractions is the Amtrak Station - is it walkable? Where would be a good place to head for to start a few hours wandering around, seeing the main sites and just enjoying the city - Reading Terminal? And as my time is limited ( and I'm ashamed to say, my knowledge of US history a bit basic) what are the must seesites/sights.
Thanks in advance