The United States National Park Service was founded in 1916 and is used to safeguard the historical and culturally significant sites of the U.S.A. There are currently 429 sites and over 85 million acres. Some sites are hard to access, such as the Dry Tortugas National Park, while others are inside major cities, such as Independence National Historical Park.
Birmingham Civil Rights National Monument
Natchez Trace National Parkway & Trail
Russell Cave National Monument
Trail of Tears National Historic Trail
Canyon de Chelly National Monument
Glen Canyon National Recreation Area
Grand Canyon National Park
Lake Mead National Recreation Area
Old Spanish National Historic Trail
Petrified Forest National Park
Sunset Crater Volcano National Monument
Wupataki National Monument
Buffalo National River
Butterfield Overland National Historic Trail
Fort Smith National Historic Site
Hot Springs National Park
Little Rock Central High School National Historic Site
Pea Ridge National Military Park
Trail of Tears National Historic Trail
Butterfield Overland Historic Trail
California Historic Trail
Fort Point National Historic Site
Golden Gate National Recreation Area
Juan Baustista da Anza Historic Trail
Lassen Volcanic National Park
Old Spanish Trail
Point Reyes National Seashore
Pony Express Historic Trail
Presido of San Francisco
Rosie the Riveter WWII Home Front Historical Park
Yosemite National Park
Black Canyon of the Gunnison National Park
Colorado National Monument
Curecanti National Recreation Area
Dinosaur National Monument
Florissant Fossil Beds
Great Sand Dunes National Park
Rocky Mountain National Park
Mesa Verde National Park
Old Spanish Trail
First State National Historic Park
Washington-Rochambeau Revolutionary Route Historic Trail
Belmont-Paul Women's Equality
Dwight D. Eisenhower Memorial
Ford's Theatre
Franklin Delano Roosevelt Memorial
Korean War Veterans Memorial
LBJ Memorial Grove on the Potomac
Lincoln Memorial
Martin Luther King, Jr. Memorial
Rock Creek Park
The White House and President Park
Thomas Jefferson Memorial
Vietnam Veterans Memorial
Washington Monument
World War I Memorial
World War II Memorial
Biscayne Bay National Park
Gulf Islands National Seashore
Andersonville National Historic Site
Chickamauga & Chattanooga National Military Park
Fort Pulaski National Monument
Kennasaw Mountain National Battlefield Park
Martin Luther King, JR National Historical Park
Ocmulgee Mounds National Historical Park
Lewis & Clark National Historic Trail
Lincoln Home National Historic Site
Mormon Pioneer Historic Trail
Pullman National Historical Park
Indiana Dunes National Park
Effigy Mounds National Monument
Herbert Hoover National Historic Site
Brown v. Board of Education National Historical Park
Abraham Lincoln Birthplace National Historical Park
Big South Fork National River and Recreation Area
Camp Nelson National Monument
Cumberland Gap National Historical Park
Fort Donelson National Battlefield
Mammoth Cave National Park
Mill Springs Battlefield National Monument
Acaida National Park
Antietam National Battlefield
Chesapeake & Ohio Canal National Historical Park
Fort McHenry National Monument & Historic Shrine
Adams National Historic Park
Boston
Faneuil Hall
Old South Meeting House
Old State House
Paul Revere House
Old North Church
Charlestown Navy Yard
USS Constitution
USS Cassin Young
Bunker Hill
Minute Man National Historic Park
Springfield Armory National Historic Site
Pictured Rocks National Lakeshore
Pipestone National Monument
Voyageur's National Park
Shiloh National Military Park
Vicksburg National Military Park
Gateway Arch National Park
George Washington Carver National Monument
Harry S. Truman National Historic Site
Ste. Genevieve National Historical Park
Ulysses S. Grant National Historic Site
Wilson's Creek National Battlefield
Fort Union National Monument
Knife River Indian Villages
Theodore Roosevelt National Park
Homestead National Historical Park
Tule Springs Fossil Beds National Monument
Castle Clinton National Monument
Ellis Island
National Parks of the New York Harbor
Statue of Liberty National Monument
Stonewall National Monument
Federal Hall National Monument
Hopewell Culture National Historic Park
William Howard Taft National Historical Site
Crater Lake National Park
Lewis and Clark National Historic Trail (Fort Clatsop)
Edgar Allan Poe National Historic Site
Eisenhower National Historic Site
Fort Necessity National Battlefield
Gettysburg National Military Park
Gloria Dei Church National Historic Site
Independence National Historical Park
Thaddeus Kosciuszko National Memorial
Valley Forge Historical Park
Roger Williams National Historical Site
Congaree National Park
Cowpens National Battlefield
Kings Mountain National Military Park
Ninety Six National Historic Site
Badlands National Park
Jewel Cave National Monument
Minuteman Missile National Historical Site
Mount Rushmore National Monument
Wind Cave National Park
Andrew Johnson National Historic Site
Big South Fork National River & Recreation Area
Chickamauga & Chattanooga National Military Park
Cumberland Gap National Historical Park
Fort Donelson National Battlefield
Great Smoky Mountains National Park
Manhattan Project National Historical Park
Natchez Trace Parkway & Scenic Trail
Obed Wild & Scenic River
Shiloh National Military Park
Stones River National Battlefield
Big Bend National Park
Fort Davis National Historic Site
Guadalupe Mountains National Park
Rio Grande Wild & Scenic River
San Antonio Missions National Historical Park
Waco Mammoth National Monument
Bryce Canyon National Park
Capitol Reef National Park
Cedar Breaks National Monument
Glen Canyon National Recreation Area
Zion National Park
Marsh-Billings-Rockafellar National Historical Park
Appomattox Court House National Historical Park
Arlington House, The Robert E. Lee Memorial
Cedar Creek and Belle Grove
Great Falls Park
Fredericksburg and Spotsylvania
Maggie L. Walker National Historical Site
Manassas National Battlefield
Petersburg National Battlefield
Richmond National Battlefield Park
Shenandoah National Park
Mount Rainer National Park
Wing Luke Museum Affiliated Area
Bluestone National Scenic River
Chesapeake & Ohio Canal National Historical Park
Gauley River National Recreation Area
Harpers Ferry National Historical Park
New River Gorge National Park & Preserve
Apostle Islands National Lakeshore
Ice Age National Scenic Trail
Devil's Tower National Monument