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  National Park Service site

  Alcatraz Island

  California

  Alcatraz reveals stories of American incarceration, justice, and our common humanity. This small island was once a fort, a military prison, and a maximum security fe…

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  National Historic Area

  Aleutian Islands World War II National Historic Area

  Alaska

  The remote Aleutian Islands, home to the Unangax̂ (Aleut) people for over 8,000 years, became a fiercely contested Pacific battleground in World War II. Some Unangax…

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  National Historic Site

  Bent's Old Fort National Historic Site

  Colorado

  In the 1840s the Arkansas River was the border between territory claimed by the United States and Mexico. Located along the river, Bent's Fort was an adobe trading p…

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  National Recreation Area

  Bighorn Canyon National Recreation Area

  Montana, Wyoming

  The vast, wild landscape of Bighorn Canyon National Recreation Area offers visitors unparalleled opportunities to immerse themselves in the natural world, and experi…

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  National Recreation Area

  Boston Harbor Islands National Recreation Area

  Massachusetts

  . . . where you can walk a Civil War-era fort, view historic lighthouses, explore tide pools, hike lush trails, camp under the stars, or relax while fishing, picnick…

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  National Historic Trail

  California National Historic Trail

  California, Colorado, Idaho +7

  Follow in the footsteps of over 250,000 emigrants who traveled to the gold fields and rich farmlands of California during the 1840s and 1850s: the greatest mass migr…

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  National Monument

  Camp Nelson National Monument

  Kentucky

  The US Army established Camp Nelson as a fortified supply depot in April 1863. Over the next 3 years, the site evolved into a massive recruitment and training center…

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  National Monument

  Castillo de San Marcos National Monument

  Florida

  Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortifica…

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  National Monument

  Castle Clinton National Monument

  New York

  Located at the southern tip of Manhattan, Castle Clinton marks the place where New York City began and reflects the growth of both the city and the nation. Built to…

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  National Historic Site

  Christiansted National Historic Site

  U.S. Virgin Islands

  Christiansted National Historic Site was established in 1952 as the first unit of the National Park Service in the Virgin Islands of the United States. Covering over…

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  National Park Service site

  Civil War Defenses of Washington

  District of Columbia, Maryland, Virginia

  On forested hills surrounding the nation's capital are the remnants of a complex system of Civil War fortifications. These strategic buttresses transformed the young…

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  National Park

  Dry Tortugas National Park

  Florida

  Almost 70 miles (113 km) west of Key West lies the remote Dry Tortugas National Park. This 100-square mile park is mostly open water with seven small islands. Access…

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  National Historical Reserve

  Ebey's Landing National Historical Reserve

  Washington

  This stunning landscape on the Salish Sea, with its rich farmland and promising seaport, lured the earliest American pioneers north of the Columbia River to Ebey’s L…

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  National Historic Trail

  El Camino Real de los Tejas National Historic Trail

  Louisiana, Texas

  Explore a diverse array of histories contained within El Camino Real de los Tejas’ 150-year life, including the Spanish struggle to missionize American Indian nation…

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  National Historic Trail

  El Camino Real de Tierra Adentro National Historic Trail

  New Mexico, Texas

  Travel along El Camino Real de Tierra Adentro National Historic Trail to experience and learn from a complicated legacy of 300 years of conflict, cooperation, and cu…

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  National Historical Park

  First State National Historical Park

  Delaware, Pennsylvania

  Famous as the First State to ratify the Constitution, Delaware was born out of a conflict among three world powers for dominance of the Delaware Valley. From this be…

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  National Historic Site

  Fort Bowie National Historic Site

  Arizona

  For nearly 25 years, Fort Bowie stood at the crossroads of the Chiricahua Apache's fight to defend their ancestral homeland and the U.S. Army's westward expansion. T…

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  National Historic Site

  Fort Davis National Historic Site

  Texas

  Fort Davis is one of the best surviving examples of an Indian Wars' frontier military post in the Southwest. From 1854 to 1891, Fort Davis was strategically located…

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  National Battlefield

  Fort Donelson National Battlefield

  Kentucky, Tennessee

  Brigadier General Ulysses S. Grant was becoming quite famous as he wrote these words following the surrender of Confederate Fort Donelson on Sunday, February 16, 186…

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  National Park Service site

  Fort Dupont Park

  District of Columbia

  This 361 acre wooded park was once home to an earthen fort built to protect Washington, DC, during the Civil War. Today, visitors can see the fort's earthworks and e…

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  Park

  Fort Foote Park

  Maryland

  Fort Foote was constructed in 1863 atop Rozier's Bluff to strengthen the ring of fortifications that encircled Washington, D.C. Two of the Guns that protected Washin…

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  National Historic Site

  Fort Laramie National Historic Site

  Wyoming

  Originally established as a private fur trading fort in 1834, Fort Laramie evolved into the largest and best-known military post on the Northern Plains before its ab…

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  National Historic Site

  Fort Larned National Historic Site

  Kansas

  Discover a complete and authentic army post from the 1860s -1870s! This well-preserved fort on the Santa Fe Trail shares a tumultuous history of the Indian Wars era.…

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  National Monument

  Fort Matanzas National Monument

  Florida

  Fort Matanzas National Monument preserves the fortified coquina watchtower, completed in 1742, which defended the southern approach to the Spanish military settlemen…