A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

An underground magnet for ever-changing street art.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Mountain where Jesus was first tempted by the Devil.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This semi-secret storybook hedge maze is also the oldest garden in the city.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A wunderkammer hidden on the top floor of the Hartford statehouse.

The intriguing personal collection of a professional demon-chaser.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

An abandoned Depression-era zoo hidden just off the highway.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

World's first "penitentiary," meant to be humane, drove men insane.

A layered tribute to the work of mosaicist Isaiah Zagar.