Twain, who lived there from 1900-1901, is rumored to haunt the stairwell of the house.
Bridge Cafe Numerous accounts of haunting at one of New York City's oldest theaters including sightings of the building's builder and namesake, David Belasco, who lived in an apartment at the top of the theater before his death in 1931.
His ghost is said to interact with actors, offering kudos and handshakes, and many have reported hearing footsteps and the disconnected elevator running.
Sightings of the Blue Lady, possibly Belasco's companion, have been reported numerous times.
More: Halloween in New York City People have reported seeing ghosts in New York City for hundreds of years.
These famous locations in New York City are purported to be haunted -- while you may not see a ghost in any of New York City's haunted spots, some of the stories that explain the haunting are just as scary.
Algonquin Hotel Many guests at the Algonquin Hotel have claimed to spot members of The Round Table, a group of writers that met at the Algonquin for lunch daily after World War I.
Members of The Round Table (who called themselves the Vicious Circle) include Dorothy Parker, Robert Benchley, Franklin Pierce, Robert Sherwood, Harpo Marx, Alexander Woollcott, Herold Ross, George S.
Beth Israel Hospital In the sixties, the ghost of a young boy/young man was seen by a couple of construction workers at The Dakota.
A girl dressed in turn-of-the-century clothing was seen by painters working at the building several years later.