The beauty of urban decay, hiding some dark secrets.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Tour the sci-fi-esque reality of governmental disease management.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

One of the best examples of Art Deco architecture in the United States.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

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

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

A historic ruin just 20 feet away from a busy highway onramp.

A portal into the bricked up canal that runs through the heart of Washington D.C.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

In the basement of the U.S. Capitol Building is a hidden storage room full of ornate floor tiles leftover from the 1850s.

Go take a picture with the inventor of the daguerreotype photographic process.

A historic neighborhood church is reborn as a psychedelic arts collective.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

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

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

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

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

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

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

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.