A toy store with a century-long history preserves the craftsmanship of playthings of the past.

Rebuilt remains of a temple to Roman god Mithras.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A hands-off space for graffiti artists to hone and display their skills.

An unusual round church in London with a Templar past.

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

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

Hidden beneath the streets of London is a secret subway that only carried mail.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

The intriguing personal collection of a professional demon-chaser.

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