When people imagine national park sites, they probably envision the geysers of Yellowstone or the crisp ocean breeze of Acadia. But national park sites aren’t just a feature of the great outdoors. Of the 433 park sites in the National Park System, only 63 are actually parks. The rest are a mix of national historic sites, memorials, preserves, or other designations — all full of rich, nuanced American history and cultural significance.
National monuments in particular are areas of federal land protected for their significant historical, cultural, or scientific importance, established under the Antiquities Act of 1906, which preserves and protects the archeological heritage of the U.S.
Though many might get their first taste of national monuments on a tour of Washington, D.C., they also include land, buildings, statues, or…