Don’t be surprised if you spot people dressed in character from tricorn-hat down to square-buckled shoe in this historic part of the city. After all, Philly is the Cradle of Liberty. Visiting these 55 acres of National Park is a must for anyone coming to Philadelphia. The abundance of landmarks in this park—including Independence Hall, the Liberty Bell, Congress Hall, and the Ben Franklin Museum—speak to its extraordinary role in the founding of the nation. (Pro tip: Go early to procure the required free tickets at Independence Visitors Center for the popular Independence Hall tour.) There are plenty of beautiful green spaces to wander through and wonder about the courage it took Franklin, Thomas Jefferson, John Adams and the other freedom fighters to declare independence from England.