This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

These ornate arches show how the course of the River Thames has changed.

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

London's smallest police station is barely the size of a phone booth.

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

The final resting place of a German diplomat's beloved companion.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This sculpture combines the literary Alice with her real-life inspiration.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

Visit the monolithic tomb of America's most famous general.

The solemn exterior conceals an opulent interior of this 17th century church.

Macabre astrological automaton clock dating to the late 1400s.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

A rare example of World War I trenches from the British front.

The celebrated eyesore created by starry-eyed sweethearts.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

A cross marks the spot in a small Scottish village that claims to be the exact center of the country.