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

Scattered throughout London are ancient remnants of the city's former bounding wall.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

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

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

This South London cemetery holds the remains of more than 15,000 people.

Rebuilt remains of a temple to Roman god Mithras.

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

An unusual round church in London with a Templar past.

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

Outsider art meets paleontology at this roadside reptile repository.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The only recreation of William Shakespeare's indoor playhouse.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Once America's tallest structure, now a Baltimore landmark.

A hidden alley in urban Baltimore is a haven for graffiti artists.

The trials and tribulations of marking Poe's grave.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.