Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

A collection of soda memorabilia that spans decades.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

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.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

Breathtaking and huge 430 year old maps of Italy.

This stone in Lake Geneva was once the reference point used to determine altitude in Switzerland.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

A permanent exhibition honors Queen, which recorded seven albums at the casino-based studio, including “Under Pressure” with David Bowie.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

A constellation of golden cobblestones shows the names of local children born under a full moon.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.