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
Field files
The complete index.
66 sourced field files across all 50 states. History, folklore, and access rules are labeled on every record. The Atlas is curated, not exhaustive.
10 of 66 field files.
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