A super-sized promotional trick that is now a D.C. landmark.

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

The oldest continuously operating fish market in the United States.

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

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

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

A wondrous old library overlooking the nation's capital.

This grand gothic brewery has been pumping out suds for over a hundred years.

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

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

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

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Rotting dome home spotted near Chapel Hill, North Carolina.

So many migrating birds roost on the bridge, it has a special summer speed limit.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

An annual celebration of the region's successful elk reintroduction program.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.