Independence Visitor Center
Address: 599 Market Street, Philadelphia, PA 19106
This is America's most historic square mile: Independence Hall, where the Declaration of Independence was adopted and the Constitution debated and signed; the Liberty Bell; Congress Hall, where the young republic's legislature sat; and Franklin Court, honoring Philadelphia's own Benjamin Franklin.
See the Liberty Bell's famous crack, tour Independence Hall, and visit Franklin Court; young kids can earn a Junior Ranger badge. For a challenge, spend a full day working through the park's many founding-era buildings and exhibits in depth.
Coordinates: 39.95140, -75.15003