This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A museum in the childhood house of a medical pioneer.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

An early 20th-century bullring converted into a modern shopping center.

A fantastic Christmas tradition where defecation meets the manger.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

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

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

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

Ship-sized kinetic sculptural fantasy.

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.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Repository for more than 22 million pickled specimens.

Eighty million natural history specimens call this gargantuan museum home.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.