This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This cave holds a surprisingly colorful variety of geological oddities.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A local prank turned town icon.

A toxic ghost town sitting atop a massive coal fire.

The world's longest known cave system.

The medieval woodcut-style artwork chronicles life in medieval London.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Two plaques commemorate the site of Shakespeare's first theatre.

Pop culture has helped to keep this iconic British building from being destroyed.

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

The final resting place to 300 Victorian-era pets hides inside the city park.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

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

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

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 first ‘Harry Potter’ film.

An aptly-named street near the birthplace of the modern LGBT rights movement.