The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

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

An architectural oddity hides in plain sight on this iconic London bridge.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The celebrated eyesore created by starry-eyed sweethearts.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

This bridge was constructed from the rubble of the infamous Bastille.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

It's believed that these columns marked the end of the Via Appia.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.