This national park also encompasses the Liberty Bell (viewable from the outside through several layers of glass) as well as Independence Hall itself, where both the Declaration of Independence and the Constitution were debated and signed. American history doesn't get richer than this.
If you like American history, Philadelphia is the town for you. The National Constitution Center is a relatively recent addition to the museum scene, meaning its exhibits are thoughtful and insightful and focus on Philadelphia - and our nation's - rich past, including the Declaration of Independence and the state of the Constitution today.
Eccentric Philadelphia Alfred Barnes amassed one of the world's most amazing collection of Impressionist and Post-Impressionist art - arranged in a specific manner meant to teach viewers about form and shape. Unique and wonderful.
Kate's personal favorite museum with some of the original Gilbert George Washington's (known for the dollar bill) to incredible Hudson River School Landscapes to more modern art, all housed in a stunning Frank Furness (native Philadelphian) designed building. Don't miss the life-size plane sculpture garden in the building's courtyard.
Giant indoor market of stalls, ranging from various Amish foods (staffed by Amish Mennonites) to specialty spices to all a stall serving only varieties of grilled cheese., with a beer garden, Bassett's ice cream and cheesesteaks in between - what more do you need?
People talk about Pat's or Geno's for cheesesteaks, but our money is on Jim's, more conveniently located on South Street. Order cheez whiz at your own peril (or as Bob would say, "because it's the right thing to do").
Philadelphia is known for its amazing murals. Check out the Mural Arts Foundation's offered tours to get to see them all at once.