This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This series of Scottish caves has no clear purpose other than baffling historians.

360° views of the city plus five floors of optical illusions and hands-on science.

A museum marks and documents the site of the Titanic's launch.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Rebuilt remains of a temple to Roman god Mithras.

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

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

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

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

One part local history, 99 parts gruesome haunted house.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The broken skateboards that became a poignant memorial to a murdered skater.

London's smallest police station is barely the size of a phone booth.

A 18th century graveyard and its astonishing cortege of macabre iconography.

One of Ireland's most infamous prisons for rebels including men, women and children.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.