Escape the crowds at Effigy Mounds National Monument in Iowa. Consider visits to two of the park's lesser-known areas.

The monument would consist of 11 separate parcels, totaling around 139,000 acres along the trail connecting the north and south units of Theodore Roosevelt National Park. Dakota Prairie Grasslands ...

At the Bandelier National Monument, visitors can explore the remnants of one of these settlements. At the base of Frijoles Canyon are a collection of ancient cave dwellings and other stone ...

That's what you'll find at Muir Woods, the beautiful and expansive national monument just 16 miles north of San Francisco. This attraction is a must-see for anyone looking to get up close and ...