Hungarian self-built castle.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

One of Hungary's most influential places of learning is also home to one of the world's most beautiful libraries.

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

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

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

Once the home of a hermetic monk, this cave now houses a small church.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Rebuilt remains of a temple to Roman god Mithras.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The only medieval bridge in Britain with its defensive tower still in tact.

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

A unique tribute to the millions of animals who served and died for the British military.

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

A relic from one of London's worst 19th-century slums.

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

At just 51 feet and 10 inches long, it's the shortest street in England.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

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

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).

The world's oldest model village.