Ludlow Massacre Monument
A memorial and interpreted site marking the deadly 1914 attack on a coal-strikers' tent colony.
DocumentedPublicFree45 to 90 minutesChecked July 2026
Category · 10 field files · 10 states
Memorials
Places that hold what cannot be undone: national memorials, a cemetery, incarceration camps, a plantation museum centered on enslaved people, and monuments to war and labor dead.
Material: pale limestone with lichen in the grain. Brand imagery, not a photograph of any listed place.
- Access considerations
- Memorial files are public sites, museums, and cemeteries with posted hours. Reservations and security rules can apply.
- Safety considerations
- Exposure and remote sites at some memorials. The larger consideration is conduct: quiet, respect, and restraint in photography.
- Evidence expectations
- Documented. These pages use the most restrained presentation in the Atlas and never carry playful discovery features.
- Source-check status
- Most recent practical-details check in this category: July 2026. Conditions change. Check the primary source before leaving home.
State coverage
Memorials in Volume 01
Andersonville National Historic Site
The site of Camp Sumter Civil War prison, Andersonville National Cemetery, and the National Prisoner of War Museum.
DocumentedPublicCheck the source2 to 4 hoursChecked July 2026Pearl Harbor National Memorial
A memorial landscape centered on the attack of December 7, 1941, including the USS Arizona Memorial above the sunken battleship.
DocumentedPublicFee or pass2 to 5 hoursChecked July 2026Whitney Plantation
A museum and historic plantation site centered on the lives and experiences of enslaved people.
DocumentedTicketedTicketed2 to 3 hoursChecked July 2026The Green-Wood Cemetery
A vast nineteenth-century cemetery of hills, monuments, mausoleums, trees, and more than half a million permanent residents.
DocumentedPublicVaries2 to 5 hoursChecked July 2026Oklahoma City National Memorial
A memorial and museum on the site of the 1995 bombing of the Alfred P. Murrah Federal Building.
DocumentedPublicVaries2 to 4 hoursChecked July 2026Topaz Museum & Historic Site
A museum and remote camp site preserving the history of Japanese Americans incarcerated at Topaz during World War II.
DocumentedPublicCheck the source2 to 4 hoursChecked July 2026Bennington Battle Monument
A 306-foot stone monument commemorating the pivotal 1777 Battle of Bennington.
DocumentedSeasonalFee or pass1 to 2 hoursChecked July 2026Maryhill Stonehenge
A full-scale concrete Stonehenge replica completed in 1929 as a memorial to Klickitat County service members killed in World War I.
DocumentedPublicFree45 to 90 minutesChecked July 2026Heart Mountain Interpretive Center
A museum and National Historic Landmark preserving the site where Japanese Americans were incarcerated during World War II.
DocumentedTicketedFee or pass2 to 4 hoursChecked July 2026