A National Historical Park is a designated area in the United States that preserves sites of historical significance. These parks protect important landmarks, structures, and landscapes that tell the story of the nation’s past. They often include visitor centers, educational programs, and guided tours to help people understand the historical context of the area. National Historical Parks can commemorate various themes, such as battles, cultural heritage, or significant events. Examples include the Boston National Historical Park, which highlights the American Revolution, and the New River Gorge National Park, which showcases the region's industrial history. These parks aim to educate the public and promote the preservation of American history.