A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

These lush botanical gardens employ the most purrfect pest control force.

A secret, ethereal waterfall beneath the picturesque gardens.

At one of the nation’s longest-running professional theaters, the audience used to barter for tickets with produce and livestock.

Country fans may flock to Nashville's music scene, but this Appalachian town is where the genre was born.

One street divides a single town that stands in two U.S. states.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

The narrowest house in America is seven feet of pure spite.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The only labyrinth within the city of Alexandria.

Bizarre Cavern.

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

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

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

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

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

Decades before the scandal, this staircase on the river was a literal "water gate."

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A rotating cast of guys and dolls in front of a Washington, D.C. building.