| Hopewell Culture National Historical Park National Historical Park · OH | 4.2 h | Free | 51,969 | 0 |
| Charles Young Buffalo Soldiers National Monument National Monument · OH | 4.3 h | Free | 4,412 | 0 |
| Dayton Aviation Heritage National Historical Park National Historical Park · OH | 4.3 h | Free | 79,760 | 0 |
| William Howard Taft National Historic Site National Historic Site · OH | 5.4 h | Free | 18,121 | 0 |
| Carlisle Federal Indian Boarding School National Monument National Monument · PA | 5.5 h | Free | no count | 0 |
| Gauley River National Recreation Area National Recreation Area · WV | 5.5 h | Free | 213,596 | 1 |
| Antietam National Battlefield National Battlefield · MD | 5.6 h | Fee | 161,006 | 0 |
| Cedar Creek & Belle Grove National Historical Park National Historical Park · VA | 5.6 h | Free | no count | 0 |
| Catoctin Mountain Park Park · MD | 5.7 h | Free | 460,857 | 6 |
| Harpers Ferry National Historical Park National Historical Park · WV, VA, MD | 5.7 h | Fee | 537,876 | 0 |
| Women's Rights National Historical Park National Historical Park · NY | 5.7 h | Free | 27,346 | 0 |
| Eisenhower National Historic Site National Historic Site · PA | 5.8 h | Free | 75,328 | 0 |
| Gettysburg National Military Park National Military Park · PA | 5.8 h | Free | 730,398 | 0 |
| Harriet Tubman National Historical Park National Historical Park · NY | 6 h | Free | 941 | 0 |
| Monocacy National Battlefield National Battlefield · MD | 6 h | Free | 116,902 | 0 |
| New River Gorge National Park & Preserve National Park & Preserve · WV | 6 h | Free | 1,958,440 | 9 |
| Potomac Heritage National Scenic Trail National Scenic Trail · DC, MD, PA, VA | 6.1 h | Free | no count | 0 |
| Shenandoah National Park National Park · VA | 6.1 h | Fee | 1,682,152 | 4 |
| Appalachian National Scenic Trail National Scenic Trail · CT, GA, MA, MD, ME, NC, NH, NJ, NY, PA, TN, VA, VT, WV | 6.2 h | Free | 6,215,118 | 0 |
| Bluestone National Scenic River National Scenic River · WV | 6.5 h | Free | 12,446 | 0 |
| Chesapeake & Ohio Canal National Historical Park National Historical Park · DC, MD, WV | 6.5 h | Fee | 4,579,704 | 37 |
| Great Falls Park Park · VA | 6.5 h | Fee | no count | 0 |
| Manassas National Battlefield Park National Battlefield Park · VA | 6.5 h | Free | 473,482 | 0 |
| Indiana Dunes National Park National Park · IN | 6.6 h | Fee | 2,629,497 | 3 |
| Wolf Trap National Park for the Performing Arts Park Unit · VA | 6.6 h | Free | 437,413 | 0 |
| Clara Barton National Historic Site National Historic Site · MD | 6.7 h | Free | 11,309 | 0 |
| Glen Echo Park Park · MD | 6.7 h | Free | no count | 0 |
| George Washington Memorial Parkway Memorial Parkway · DC, MD, VA | 6.7 h | Free | 6,732,932 | 0 |
| African American Civil War Memorial Part of National Mall and Memorial Parks · DC | 6.8 h | Free | no count | 0 |
| Arlington House, The Robert E. Lee Memorial Park Unit · VA | 6.8 h | Free | 363,284 | 0 |
| Carter G. Woodson Home National Historic Site National Historic Site · DC | 6.8 h | Free | 20 | 0 |
| Constitution Gardens Park Unit · DC | 6.8 h | Free | no count | 0 |
| Civil War Defenses of Washington Related Area · DC, MD, VA | 6.8 h | Free | no count | 0 |
| Ford's Theatre National Historic Site National Historic Site · DC | 6.8 h | Free | 393,662 | 0 |
| Franklin Delano Roosevelt Memorial Park Unit · DC | 6.8 h | Free | 2,832,124 | 0 |
| Hampton National Historic Site National Historic Site · MD | 6.8 h | Free | 48,158 | 0 |
| Korean War Veterans Memorial Park Unit · DC | 6.8 h | Free | 3,975,010 | 0 |
| Lincoln Memorial Park Unit · DC | 6.8 h | Free | 7,743,295 | 0 |
| LBJ Memorial Grove on the Potomac Park Unit · DC | 6.8 h | Free | 236,042 | 0 |
| Mary McLeod Bethune Council House National Historic Site National Historic Site · DC | 6.8 h | Free | 3,123 | 0 |
| Martin Luther King, Jr. Memorial Park Unit · DC | 6.8 h | Free | 2,843,263 | 0 |
| National Mall and Memorial Parks Park Unit · DC | 6.8 h | Free | no count | 0 |
| Pennsylvania Avenue Park Unit · DC | 6.8 h | Free | 115,618 | 0 |
| Rock Creek Park Park · DC | 6.8 h | Free | 1,865,048 | 0 |
| Steamtown National Historic Site National Historic Site · PA | 6.8 h | Free | 60,844 | 0 |
| Theodore Roosevelt Island Park Unit · DC | 6.8 h | Free | 159,828 | 0 |
| Thomas Jefferson Memorial Park Unit · DC | 6.8 h | Free | no count | 0 |
| Vietnam Veterans Memorial Park Unit · DC | 6.8 h | Free | 4,848,112 | 0 |
| Washington Monument Park Unit · DC | 6.8 h | Free | 204,489 | 0 |
| The White House and President's Park Park Unit · DC | 6.8 h | Free | 311,213 | 0 |
| World War II Memorial Park Unit · DC | 6.8 h | Free | 3,993,717 | 0 |
| World War I Memorial Park Unit · DC | 6.8 h | Free | 838,999 | 0 |
| Anacostia Park Park · DC | 6.9 h | Free | no count | 0 |
| Baltimore-Washington Parkway Parkway · MD | 6.9 h | Free | no count | 0 |
| Belmont-Paul Women's Equality National Monument National Monument · DC | 6.9 h | Free | 6,514 | 0 |
| Capitol Hill Parks Part of National Capital Parks-East · DC | 6.9 h | Free | no count | 0 |
| Dwight D. Eisenhower Memorial Memorial · DC | 6.9 h | Free | 676,062 | 0 |
| Fort Dupont Park Part of National Capital Parks-East · DC | 6.9 h | Free | no count | 0 |
| Fort McHenry National Monument and Historic Shrine National Monument and Historic Shrine · MD | 6.9 h | Fee | 283,027 | 0 |
| Frederick Douglass National Historic Site National Historic Site · DC | 6.9 h | Free | 29,378 | 0 |
| Greenbelt Park Park · MD | 6.9 h | Free | 130,314 | 1 |
| Green Springs Affiliated Area · VA | 6.9 h | Free | no count | 0 |
| Kenilworth Park & Aquatic Gardens Part of National Capital Parks-East · DC | 6.9 h | Free | no count | 0 |
| National Capital Parks-East Park Unit · DC | 6.9 h | Free | no count | 0 |
| Oxon Cove Park & Oxon Hill Farm Part of National Capital Parks-East · MD | 6.9 h | Free | no count | 0 |
| Prince William Forest Park Park · VA | 6.9 h | Fee | 339,015 | 10 |
| Star-Spangled Banner National Historic Trail National Historic Trail · MD, VA, DC | 6.9 h | Free | no count | 0 |
| Fort Foote Park Park · MD | 7 h | Free | no count | 0 |
| Fort Washington Park Park · MD | 7 h | Free | 502,171 | 0 |
| Harmony Hall Part of National Capital Parks-East · MD | 7 h | Free | no count | 0 |
| Piscataway Park Park · MD | 7 h | Free | 275,070 | 0 |
| Fredericksburg & Spotsylvania National Military Park National Military Park · VA | 7.1 h | Free | 765,991 | 0 |
| Hopewell Furnace National Historic Site National Historic Site · PA | 7.1 h | Free | 45,897 | 0 |
| Camp Nelson National Monument National Monument · KY | 7.2 h | Free | 20,763 | 0 |
| Pullman National Historical Park National Historical Park · IL | 7.2 h | Free | 22,367 | 0 |
| Thomas Stone National Historic Site National Historic Site · MD | 7.2 h | Free | 4,910 | 0 |
| Captain John Smith Chesapeake National Historic Trail National Historic Trail · VA, MD, DE, DC, PA, NY | 7.3 h | Free | no count | 0 |
| Chesapeake Bay Related Area · DC, DE, MD, NY, PA, VA, WV | 7.3 h | Free | no count | 0 |
| Fort Stanwix National Monument National Monument · NY | 7.3 h | Free | 77,507 | 0 |
| Sleeping Bear Dunes National Lakeshore National Lakeshore · MI | 7.3 h | Fee | 1,601,747 | 8 |
| Appomattox Court House National Historical Park National Historical Park · VA | 7.4 h | Free | 77,496 | 0 |
| Booker T. Washington National Monument National Monument · VA | 7.4 h | Free | 21,698 | 0 |
| First State National Historical Park National Historical Park · DE, PA | 7.5 h | Free | 200,173 | 0 |
| Upper Delaware Scenic & Recreational River Scenic & Recreational River · NY, PA | 7.5 h | Free | 380,245 | 0 |
| Valley Forge National Historical Park National Historical Park · PA | 7.5 h | Free | 1,819,086 | 0 |
| Delaware Water Gap National Recreation Area National Recreation Area · NJ, PA | 7.7 h | Fee | 3,986,709 | 6 |
| George Washington Birthplace National Monument National Monument · VA | 7.7 h | Free | 72,072 | 0 |
| Edgar Allan Poe National Historic Site National Historic Site · PA | 7.9 h | Free | no count | 0 |
| Independence National Historical Park National Historical Park · PA | 7.9 h | Free | 1,926,580 | 0 |
| Lower Delaware National Wild and Scenic River National Wild and Scenic River · PA, NJ | 7.9 h | Free | no count | 0 |
| Thaddeus Kosciuszko National Memorial National Memorial · PA | 7.9 h | Free | 1,664 | 0 |
| Gloria Dei Church National Historic Site National Historic Site · PA | 8 h | Free | no count | 0 |