Independence Hall is the building where both the United States Declaration of Independence and the United States Constitution were debated and adopted.
Liberty Island is home to the Statue of Liberty.
The Great Smoky Mountains National Park is a vast area of pristine wilderness, spanning more than half a million acres.
Mammoth Cave National Park is home to the world's longest known cave system.
Cahokia Mounds State Historic Site is home to a prehistoric Native American city near Collinsville, Illinois.
Old Quebec is a historic neighborhood of Quebec City, characterized by its colonial architecture and significant landmarks.