Places thedoubtfulguests Wants to Go

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

An abandoned castle owned and ignored by Masons carries a cursed history.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

This abandoned amusement park was built on a site with a dark history.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Resting place of Hollywood's immortals is also site of summer film screenings.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Abandoned railway line circling the city of Paris.

A walk through the historic city center, under the streets of Seattle.

A memorial to a shareholder activist feared by CEOs around the United States.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Try not to get slimed in Tribeca.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A toxic ghost town sitting atop a massive coal fire.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The legendary building that needed ghostly approval before being built.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

An eerie, derelict amusement park in Berlin.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.