A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Corn-inthian columns with a uniquely American take on neoclassical architecture.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Perhaps the most scandalous statue of America's first president.

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

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

An overlooked memorial honoring the local Washington residents who died in World War I.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The national park was once a plantation estate.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

Road signs in Namibia mark the location of one of the five major circles of latitude.

It was once the base for a series of domestic terror attacks.

FDR's Art Deco hospital tower was hopelessly inefficient.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

Visible from both land and sea.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

It's estimated that half of the world's gold was mined from South Africa's "golden arc."

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.