The fountain marks the area where hundreds of accused witches were burned at the stake.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

One of the biggest Buddhist stupas in Europe, hidden from most locals.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

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

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

This charming, narrow-gauge railway in the Thames Estuary is sometimes referred to as the "Train to Nowhere."

This castle played host to the largest great hall found in medieval Central Europe.

An underground city of salt.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This skewed English house has looked like it's going to fall over for centuries.

One of England's most famous churches hides a pair of little known architectural treasures.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Resting place of Hollywood's immortals is also site of summer film screenings.

Medical and zoological curiosities for sale.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.