18 Most Haunted Forts in America: Real Ghost Stories You Can Visit
Forts were built for one purpose, and that purpose was death. Soldiers stood watch on the ramparts, prisoners rotted in the casemates, and the wounded bled out in the powder magazines.
Behind these thick stone walls came siege, disease, and execution. Yellow fever emptied barracks, cholera filled the cemeteries, and firing squads turned parade grounds into killing floors.
We pulled this list from our directory of haunted forts across the country. Each one earned its place through decades of consistent reports, not a single spooky night.
Here are the 18 most haunted forts in America, the spirits that linger there, and exactly how you can visit.
Why Old Forts Are So Haunted
Forts concentrate suffering into a small footprint. Hundreds of men lived, fought, and died inside the same walls for decades on end.
Many forts pulled double duty as prisons. Confederate captives died by the thousands at places like Fort Delaware, their bodies hauled out faster than burial details could keep up.
Disease did even more damage than combat. Yellow fever, smallpox, and cholera swept through cramped quarters, and the dead were often stored in cold magazines before burial. That kind of trauma tends to leave a mark.
1. Fort McHenry – Baltimore, Maryland
The star-shaped fortress at Fort McHenry survived a twenty-five-hour British bombardment in 1814 and inspired the national anthem. Four soldiers died during the attack, and their blood soaked into the earthworks.
During the Civil War the fort became a military prison where more than 6,800 people were held in its dungeons and casemates. Many died of disease and harsh treatment, and phantom soldiers in both War of 1812 and Civil War uniforms are still seen patrolling the ramparts before walking straight through the brick walls.
The fort is a National Monument and Historic Shrine, open daily to the public. Walk the ramparts and powder magazines where rangers report phantom footsteps and sudden cold spots.
2. Castillo de San Marcos – St. Augustine, Florida
Completed in 1695, Castillo de San Marcos is America’s oldest masonry fort, built by the Spanish from coquina stone. Its most tragic tale dates to 1784, when remains of a Spanish soldier and a young woman were found walled up alive in a dungeon, victims of a jealous colonel’s rage.
The fort later held Apache prisoners in the 1880s, many of whom died of tuberculosis far from home. Visitors report a Spanish soldier standing watch at dusk, a woman in a flowing gown, and the sound of chains dragging in the old cells.
The Castillo is open daily as a National Monument, with adult admission around $15 and children free. The dungeon where the lovers were discovered is the most actively haunted spot inside.
3. Fort Delaware – Delaware City, Delaware
On Pea Patch Island in the Delaware River, Fort Delaware held more than 30,000 Confederate prisoners during the Civil War. Smallpox, dysentery, and cholera killed men by the dozen every week.
An estimated 2,700 Confederate soldiers died inside its granite walls, and their bodies were buried across the river at Finn’s Point. The fort’s most famous spirit is the Crying Soldier, a young Confederate prisoner heard sobbing in Cell Block One late at night.
The fort is now a state park reached by ferry, with living-history programs and seasonal paranormal tours. Visitors regularly report invisible hands grabbing their arms in the prison areas.
4. Fort Leavenworth – Leavenworth, Kansas
Established in 1827, Fort Leavenworth is the oldest active military post west of the Mississippi. It became home to the United States Disciplinary Barracks, the nation’s only maximum-security military prison, and the site of military executions that continued until 1961.
The fort’s most famous ghost is Catherine Sutter, who arrived in 1867 and died in 1868. Her spirit is said to wander the grounds near the Rookery mansion, and guards report marching boots and authoritative voices in the older buildings after dark.
Because it is an active installation, public access requires passing through the visitor control center for credentials. The Frontier Army Museum on post is open to visitors.
5. Fort William Henry – Lake George, New York
Built in 1755 during the French and Indian War, Fort William Henry fell to the French after a brutal siege in 1757. The surrender was followed by the infamous massacre of retreating soldiers and civilians, an event immortalized in The Last of the Mohicans.
The fort’s signature spirit is a headless British officer said to have been decapitated during the massacre, seen pacing the barracks. Visitors also report a weeping woman near the gates and ghostly drums echoing across the parade ground.
This reconstructed fort is open to the public, typically 9 AM to 6 PM, with seasonal ghost tours after dark. The underground powder magazine is considered the most haunted spot inside.
6. Fort Wayne – Detroit, Michigan
Sprawling across 96 acres along the Detroit River, Fort Wayne served from the 1840s through World War II as barracks, a prisoner-of-war camp, and an induction center. Its layered history includes executions, suicides, and disease outbreaks.
In 1863 a Union soldier named Private Robert Morrison was executed by firing squad on the parade ground for desertion, reportedly cursing the fort and vowing never to leave. Disembodied marching footsteps and phantom drums are among the most common reports here.
Parts of the fort are open as a historic site through the City of Detroit and volunteer groups. Large sections remain crumbling, so stick to the guided and sanctioned areas.
7. Presidio La Bahia – Goliad, Texas
Built in 1749, Presidio La Bahia is a Spanish fort and mission that became infamous during the Texas Revolution. In 1836 the Goliad Massacre took place here, where more than 300 Texan soldiers were executed under Santa Anna’s orders.
The chapel, Our Lady of Loreto, heard the final prayers of many condemned men. A misty figure believed to be Colonel James Fannin paces the outer walls, and visitors report candles lighting themselves during evening tours.
The presidio is open daily for self-guided tours with adult admission around $5, plus candlelight ghost tours in October. The chapel is the most haunted spot inside.
8. Historic Fort Snelling – St. Paul, Minnesota
Standing at the confluence of the Minnesota and Mississippi Rivers since 1820, Historic Fort Snelling was Minnesota’s first permanent military outpost. The mortality rate among early soldiers was high due to disease, accidents, and harsh discipline.
Its darkest chapter came in 1862, when roughly 1,600 Dakota people were imprisoned below the fort over a brutal winter and more than 300 died of exposure and disease. The Round Tower and commandant’s house are linked to apparitions, cold spots, and figures from the past who seem disturbingly real.
The restored fort operates as a museum site with living-history interpreters. Check seasonal hours, since the site is most active in the warmer months.
9. Fort Zachary Taylor – Key West, Florida
Built between 1845 and 1860, Fort Zachary Taylor never saw hostile action, yet thousands of soldiers died here from yellow fever and tuberculosis. The fort also served as an execution site, with deserters hanged at noon from the gallows.
At precisely noon, visitors report unearthly screams begging for life, followed by the snap of a phantom trap door. The most famous spirit is Wendal, a yellow fever victim who appears as a translucent figure in period uniform in photographs.
The fort sits inside a Florida state park with a beach, open daily. Mass graves of fever victims are believed to lie beneath the parade ground.
10. Fort Morgan – Gulf Shores, Alabama
The pentagonal brick fortress of Fort Morgan guards the entrance to Mobile Bay. It earned its place in history during the 1864 Battle of Mobile Bay, when Confederate defenders endured a three-week Union bombardment.
Many soldiers died within the walls during the siege, and a yellow fever epidemic in the 1870s turned the sick bay into a morgue. Security guards now report full phantom patrols marching through sealed areas at night, often in Confederate uniforms.
The fort is open to the public as a state historic site at the end of the Fort Morgan peninsula. The powder magazine and bastions produce the most light anomalies in photos.
11. Fort Gaines – Dauphin Island, Alabama
Across the mouth of Mobile Bay from Fort Morgan stands Fort Gaines, which surrendered to Admiral Farragut on August 8, 1864, during the same famous battle. Over 600 Confederate soldiers occupied the fort during the bombardment.
Yellow fever struck hard in 1867, and a 1906 hurricane drowned soldiers in their flooded barracks. Visitors report phantom cannon fire at dawn and southern voices recorded in the tunnels discussing battle strategy.
The fort is open daily on the eastern tip of Dauphin Island, a short drive or ferry from Fort Morgan. The two forts make an easy haunted double feature.
12. Fort Adams – Newport, Rhode Island
Overlooking Narragansett Bay, Fort Adams is a massive coastal fortress that took thirty-three years to complete in 1857. During the Civil War it held Union troops and Confederate prisoners, and a yellow fever outbreak in 1862 killed at least forty-seven prisoners.
In 1893 a powder magazine explosion killed three soldiers during routine maintenance. Phantom soldiers in Union and Confederate uniforms walk the ramparts, and marching footsteps echo through the underground tunnels.
The fort is preserved as a state park with guided tunnel tours. The underground passages are where most visitors hear the disembodied marching.
13. Fort Abraham Lincoln – Mandan, North Dakota
Established in 1872 above the Missouri River, Fort Abraham Lincoln was Lieutenant Colonel George Armstrong Custer’s final home. He rode out from here on May 17, 1876, toward the Battle of Little Bighorn.
Custer and 268 soldiers died at Little Bighorn, plunging the fort into mourning when the news arrived. His presence is said to linger in the reconstructed Custer House, where visitors capture orbs and mist near the parlor and upstairs bedrooms.
The fort is now a state park spanning 1,000 acres with the reconstructed Custer House open for tours. Phantom military drums echo across the parade ground at twilight.
14. Fort Worden – Port Townsend, Washington
Built between 1897 and 1920 as part of the Triangle of Fire defense system, Fort Worden protected Puget Sound through both World Wars and the Cold War. Soldiers died in training accidents, gun-battery mishaps, and tunnel cave-ins.
Ghostly soldiers in period uniforms are the most common sighting, vanishing when approached. The old barracks and hospital are hotspots for phantom footsteps, while shadow figures move near the gun batteries at dusk.
The fort is now a state park and conference center, so much of it is freely accessible. Explore the bunkers and batteries, but bring a flashlight for the dark underground galleries.
15. Fort Washita – Durant, Oklahoma
Established in 1842 under orders from General Zachary Taylor, Fort Washita was built to protect relocated Chickasaw and Choctaw people. Cholera swept through the limestone walls multiple times in the 1840s and 1850s, killing dozens.
Confederate forces occupied the fort early in the Civil War before abandoning it. Shadow figures are the most reported phenomenon here, moving across the grounds in daylight, with cold spots concentrated near the South Barracks.
The Oklahoma Historical Society maintains the site for public visits. Many visitors refuse to walk certain areas after dark because of the overwhelming dread.
16. Fort Sisseton – Lake City, South Dakota
Construction of Fort Sisseton began in 1864 during the Dakota War, atop the windswept Coteau des Prairies plateau. A garrison of roughly 400 soldiers endured brutal sub-zero winters, irregular supplies, and primitive medical care.
Disease, accidents, and isolation claimed many men who were buried in unmarked graves near the fort. Shadows move across the empty parade ground, and strange sounds echo through barracks that have not housed living troops in over a century.
The fort is preserved as a state park with original stone and brick buildings. It ranks among South Dakota’s most actively haunted sites and hosts a popular annual festival.
17. Fort Union Trading Post – Williston, North Dakota
Established in 1828 by John Jacob Astor’s American Fur Company, Fort Union Trading Post became the most important fur depot on the upper Missouri. Smallpox epidemics in the 1830s killed thousands of Mandan, Hidatsa, and Assiniboine people who came to trade.
Violence between rival traders and tribal groups filled the fort’s cemetery over its decades of operation. Today park rangers and tourists encounter strange sounds and shadowy figures among the reconstructed buildings.
The National Park Service maintains this reconstructed post near the Montana border. Its isolation on the prairie only sharpens the eerie atmosphere.
18. Fort Knox – Prospect, Maine
Built between 1844 and 1869 along the Penobscot River, Fort Knox is one of the best-preserved military forts in the country. It never saw combat, but soldiers lived and died within its granite walls from accidents, disease, and harsh conditions.
A phantom soldier in a Civil War uniform is often seen near the officers’ quarters before vanishing. Visitors also report children’s laughter near the same quarters, despite no record of children ever living at the fort.
The fort is open to the public as a state historic site with seasonal events. The long, pitch-black tunnels beneath the fort are considered the most terrifying area.
How to Visit Haunted Forts Safely
Most of these forts are protected as national or state parks. Always confirm hours and ticket prices before you go, since many ghost tours and night investigations run only by reservation.
Old forts are physically dangerous. Crumbling walls, dark tunnels, and steep ramparts cause more injuries than any ghost, so wear sturdy shoes and stay inside marked areas.
Respect the history. Many of these walls hold the graves of soldiers, prisoners, and Native people who died here, so treat the grounds the way you would any cemetery.
If you plan to investigate after dark, pack a backup flashlight and reliable batteries, since electronics drain fast in these places. Our ghost hunting equipment guide covers everything you need for a serious fort investigation.
Frequently Asked Questions
What is the most haunted fort in America?
Fort McHenry in Baltimore and Fort Delaware in Delaware are the two most consistently reported. McHenry combines War of 1812 deaths with thousands of Civil War prisoners, while Fort Delaware saw an estimated 2,700 Confederate prisoners die behind its walls.
Which haunted forts can you tour?
Nearly all of them. Castillo de San Marcos, Fort Zachary Taylor, Fort William Henry, Presidio La Bahia, and Fort Knox all offer daily public access, and several run dedicated ghost tours in the fall.
Why are old forts so haunted?
Forts packed death into a small space. Siege casualties, prison deaths, executions, and disease epidemics all happened repeatedly within the same walls, which paranormal researchers believe imprints residual energy on the stone.
Is it safe to visit a haunted fort?
Yes, as long as you respect the structure. The real risks are physical, like dark tunnels and crumbling walls, so bring a flashlight, wear good shoes, and stick to sanctioned tours and marked paths.
Plan Your Haunted Fort Visit
Haunted forts make some of the best paranormal day trips in the country. Many are clustered near each other, like Fort Morgan and Fort Gaines on opposite sides of Mobile Bay.
Pick a fort with a documented history, go around dusk, and give yourself time to sit with the silence on the ramparts. That is when most witnesses report something.
Ready to keep exploring? Browse our full directory of haunted places across all 50 states to find more chilling sites near you.
