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

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Be(w)ar(e) the moat around this historic Czech castle.

An eerie collection of the surviving structures from a past celebration of the future.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

Continuing a tradition of movie magic on the site of America’s oldest continually operating movie theatre.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

D.C. once had its own tiny rival to the New York Stock Exchange.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The national park was once a plantation estate.

A super-sized promotional trick that is now a D.C. landmark.

There’s a hidden military meme engraved on the World War II Memorial.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

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

The last four extravagant street signs of London's historic banking street.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Two plaques commemorate the site of Shakespeare's first theatre.

Public access to clean drinking water was an instant hit among the masses.

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