Chelsea's soldiers were given strict orders when crossing this historic bridge.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

The Great Fire of London and the regulation of one-way streets both started in this alley.

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

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

The bronze uniforms commemorate the vital role of women during World War II.

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

The commemorative stone column conceals a secret laboratory.

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

Pop culture has helped to keep this iconic British building from being destroyed.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A little slice of Japan and its aesthetics in London's Holland Park.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Metro station with a claim to rock n' roll fame.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Berlin's old airport.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

The beautiful, ornate weather station is the most popular geocache in Salzburg.