An original apothecary from 1792.

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

A memorial to a shareholder activist feared by CEOs around the United States.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

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

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

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

The national park was once a plantation estate.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

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

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

Every drop of D.C. tap water flows through this old waterworks.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

A fifth-century temple improbably built into the side of a cliff.

Climb to the top of the world's largest seated bronze Buddha.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

This historic Chinese tower was said to have been haunted by fox spirits but is now haunted by a grisly murder.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Ming Dynasty necropolis raided during the Cultural Revolution.

The once highest point in China blends symbolic design with a kick of adrenaline.

Forgotten German bunkers in China create a sharp cultural contrast.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.