La Llorona: The Ghost That Crossed Borders

Abraham Lincoln died in 1865, but some say he never left the White House. From eerie premonitions of his own death to ghostly sightings during national crises, could the 16th president still be watching over America?

In 1890, medium Helen Peters helped give the Ouija board its name. But after the board accused a relative of theft and tore her family apart, she spent the rest of her life warning others that its answers might not be truthful.

Alcatraz was built to hold America’s most dangerous criminals, but some say its dead never escaped. From phantom footsteps to haunted cells, do the spirits of inmates and guards still linger inside the prison known as The Rock?

Discover places across the country where strange phenomena are common in this clip from The UnBelievable.