Ghosts

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

This 15th-century fortification was built to defend bunnies.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

An eight-sided home built during a brief octagon craze in the 1850s.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

All that remains of this small town is its mass grave and a myth of a voodoo priestess who predicted its demise.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Visitors come from all over to bring gifts and tokens to the grave of Alice, who is thought to have died of a broken heart.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.