We’ve all heard ghost stories at one time or another. The murderous man with a hook for a hand, creepy castles where once you enter you’ll never come out alive, or tales of ghosts who float above you while you sleep. What you may not know is that there are several legends and old haunted buildings with their very own haunted histories right here in Maryland. Here are 15 of the most terrifying Maryland tales that will keep you awake at night.

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1) Hager House, Hagerstown Andrew Allferls / Flickr This house built in 1739 is said to be haunted by two families. Dare to take a tour of this historic home and hear children's voices, phantom footsteps, and witness objects move on their own.

2) Jericho Covered Bridge, Kingsville James Walsh / Flickr Sure, this covered bridge seems beautiful and peaceful during the day. Wander through it at night and you may see ghostly bodies hanging from the rafters. Some believe the bodies are those of local teens who hung themselves decades ago. Others think that the bridge was used for lynching slaves, whose apparitions are forever cursed to remain dangling in horror.

3) Antietam Battlefield, Sharpsburg Ron Zanoni / Flickr Antietam Battlefield was where the bloodiest Civil War battle took place. Just over 23,000 men were wounded, missing, or killed. Therefore, it's no surprise that reports of ghoulish soldiers and the faint smell of gunpowder have been reported here.

4) Fletchertown Road, Bowie Brent humanartistvendingmachine / Flickr An urban legend tells the tale of a mad scientist who turned himself into an evil half-man, half-goat at the Beltsville Agricultural Research Center. Some say he murdered the townsfolk with an ax and, overcome with the thirst of blood, ate their remains. It sounds silly but something about this artist's interpretation of the goat man is so, so creepy.

5) Dr. Samuel A. Mudd House, Waldorf Preservation Maryland / Flickr What is now a private museum was once the place where John Wilkes Booth hid out after assassinating President Lincoln. The bed in which Booth stayed in for those three days is still in the museum and sometimes upon walking into the room, a human-shaped indentation can be seen on the blankets.

6) Fort McHenry, Baltimore m01229 / Flickr Fort McHenry was used as a prison for Confederate soldiers during the Civil War, and as a hospital for wounded soldiers during World War I. Visitors often report feelings of being watched and shadowy figures roaming the halls.

7) Spook Hill, Burkittsville Gray Lensman QX! / Flickr There is a hill in Burkittsville known to defy gravity. Park your car, put it in neutral, and be shocked as your vehicle coasts uphill! Are you brave enough to try?

8) Maryland State House, Annapolis Tianjia Liu / Flickr The Maryland State House is said to be filled with spirits. Several locals have reported seeing a ghastly revolutionary soldier on the grounds, as well as the ghost of a man who fell from the top of the building trying to make repairs.

9) Union Hotel Restaurant, Port Deposit Tennessee Wanderer / Flickr Built in the 1700s, there is a tale here of a ghostly lady in blue who has been spotted by customers and employees.

10) Point Lookout Lighthouse, Scotland Mark / Flickr What used to be a hospital for wounded Union soldiers then became a prison for the Confederates. Now, Point Lookout Lighthouse is known for its spooky happenings including apparition sightings, sudden temperature drops throughout the rooms, and various voices captured via recordings.

11) Glenn Dale Hospital, Glenn Dale Preservation Maryland / Flickr This used to be a treatment center for people with tuberculosis. Stories say that the patients were experimented on and some even tortured. The hospital was eventually shut down in 1984 due to asbestos. People who have been able to sneak into the facility claim the insane ghosts of abestos-ridden patients still reside within the walls.

12) Hampton House, Towson bdinphoenix / Flickr This mansion was once home to the wealthly Ridgely family and their large staff of indentured servants. Visitors have seen paranormal activity, including the ghosts of the original owners.

13) Lake Linganore, New Market Harry Lamar Richardson / Flickr Large orbs and unexplained sounds often make this beautiful lake a creepy place to visit, especially as the evening approaches.

14) Clara Barton House, Glen Echo Preservation Maryland / Flickr It's said that the ghost of famous war nurse, Clara Barton, haunts this house. Some have seen her see-through figure wearing a dark green dress.