The signs of a long buried road can still be found hidden beneath a London sewer grate.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

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

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The secret wartime bunker built on the platforms of an abandoned Tube station.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

These unusual rooms on wheels are holdovers from the 1960s.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A mocking tribute to the past and modern leadership of Prague.

Monument to a suicide protesting the Soviet invasion.

Steadily reminding Czechia of its past.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A surreal statue honoring Prague's favorite literary son.