17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

This luxury shopping lane has been protected by its own tiny police force for over a century.

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

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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

Catacombs turned marketplace.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

An unusual round church in London with a Templar past.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

Museum about life, death, and cannibalism in the Stone Age.

Go deep down into the earth to experience the world of Welsh coal miners.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.