Six members of the Moore family, plus two overnight guests, were killed with an ax in a bloody 1912 murder scene in a stately home in Villisca. The crime was never solved.

In 1994, the owners of the Villisca, Iowa murder home restored the property to its 1912 condition. The property is now open to macabre-minded visitors who wish to take a tour -- or even spend the night.

After an 1834 fire broke out at the LaLaurie mansion in the French Quarter of New Orleans, neighbors were shocked to discover a torture chamber, complete with mutilated slaves, in the attic of the home. The gruesome scene inspired "American Horror Story: Coven."

Always a fan of the strange and bizarre, Nicolas Cage owned the LaLaurie property until he lost it to foreclosure in 2009. The reportedly haunted home features six bedrooms, seven bathrooms and a price tag in excess of $3 million.

From 1817 to 1821, John Bell and his family were terrorized by a presence now known as the Bell witch. The Bell family property is popular with ghost hunters and is located in what is now called Adams, Tennessee.

As with many histories of suspected witches, the activities of the Bell Witch were blamed on a local woman who didn't quite fit into societal norms. Kate Batts may have been eccentric, but there's no evidence that she did anything to haunt the Bell family or their farm.

Andrew Borden and his wife Abby died a brutal death on August 4, 1892. More than a century later, there's no way to know for sure whether Lizzie committed the heinous crime, but that doesn't stop tourists from visiting the family's former home in droves.

A hatchet with a broken handle was found in the family's basement and is believed to be the murder weapon. To this day, visitors to the home -- which is now a bed and breakfast -- report spooky sightings and strange sounds.

Mark Twain once stayed in the house at No. 14 10th St. Although he didn't die there, there have been several reported sightings of the ghostly Twain sporting a white suit in the Greenwich Village dwelling.

At least 22 people have died at the house, including a six-year old girl who was bludgeoned to death in 1987. No wonder they call it a Murder House.

To confuse the house's resident ghosts, shifts of 16 carpenters continuously built the famous San Jose structure 24 hours a day from 1886 to 1922. The result is a maze of rooms, secret passages and staircases to nowhere.

Sarah Winchester inherited a fortune thanks to her family's iconic line of revolvers. Believing herself haunted by everyone ever killed by a Winchester rifle, she spent more than $5 million to keep the ghosts at bay.

The home started with just 8 rooms and now has 161 -- including a new one that was just uncovered in 2016 after it was boarded up in 1906.

Four members of the Lemp family took their lives in the Lemp Mansion in less than 50 years. One of the dead even killed his dog when he took his own life.

Need a good scare as well as a place to sleep? The Lemp Mansion in St. Louis now serves as a restaurant and hotel, with plenty of ghost sightings reported over the years at no extra charge.

The 2009 film "A Haunting in Connecticut" is based on the misfortunes of the Snedeker family, who reported being terrorized by a demon when they moved into a new home in Connecticut.

Perhaps it's not surprising that the spirits are restless in the Snedeker home, considering the home once served as a funeral parlor, and the Snedekers found mortician's tools in their basement upon moving in.

Harold Perelson notoriously murdered his wife in 1959 with a ball-peen hammer, and attempted to kill his daughter before she escaped. His horrific actions gave the Perelson's home a dark nickname that has stuck to this day -- The Los Feliz Murder House.

The Los Feliz Murder House sat unoccupied (except for the ghosts) for more than 50 years before a brave buyer paid $2.29 million for the property in 2016.

Also known as Tiedemann House after its original owners, Cleveland's Franklin Castle is rumored to be haunted by Mrs. Tiedemann and her daughter Emma. One resident brave enough to face the ghostly occupants was Michael DeVinko. The former husband to actress Judy Garland purchased the home in 1985 and lived there until the mid-90s.

Molly Brown was one of the lucky few who survived the sinking of the Titanic. Her Denver home now serves as a museum, and many visitors claim to see Molly and her husband James going about their business in the 1889 structure.

Now a luxury inn, Myrtle's Plantation was built in 1796. With such a long history, it's no surprise that the St. Francisville, Louisiana property claims several ghosts, including the spirit of a former slave named Chloe.

Ronald DeFeo Jr. killed his parents and four siblings at the Long Island, New York property in 1974, making it a true house of horrors beyond anything Hollywood could dream up.

The 1979 film gave a supernatural twist to the terrible events that took place in the home, which sold for $850,000 in 2016 to brave buyers not intimidated by its horrific history.

In a building with many different reported spooky sightings, Lincoln reigns supreme as the most frequently spotted ghost on the property. The first to report seeing a ghostly Lincoln at the White House was Grace Coolidge, who lived in the residence from 1923 to 1929.

After moving in in 1899, several members of the Gibbons family died in rapid succession in the Mitchell, Indiana Whispers Estate. Not only do the Gibbons reportedly haunt the house, but in 2006, investigators found a pit on the property containing body parts and aborted fetuses.

A gallows stood on the site before the Whaley House was built, which may explain why so many spirits have been spotted at the San Diego property. The Whaley House and the Winchester Mystery House are the only two U.S. properties designated as haunted by the U.S. Chamber of Commerce.

Redlands, California is home to Barton Mansion. Today it serves as an office building, but the property has long been plagued by ghosts. It could have something to do with the fact that the land has served as everything from an Indian burial ground to a jail to an insane asylum over the years.

Rhode Island's Sprague Mansion is home to several ghosts, including the murdered son of former owner William Sprague, as well as a butler, who even in death can't control his rage that his daughter never married one of the wealthy sons of the home.

Built in 1887, Chambers Mansion in San Francisco has been the site of several ghost sightings over the years. In 2000, the property was split in two, resulting in one private residence and a hotel that houses both travelers and the restless undead.