This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

It's not a typo, now say it five times fast!

Two thousand artifacts from around the world collected by one woman who loved to travel.

For the last eight decades, this curious shop has been ridding Atlanta of bad juju.

Rare and classic books by Black authors are the focus at this independent bookstore in a historic Atlanta neighborhood.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

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

Mai Tais and Navy Grog served up in one of the original tiki bars.

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

Home to items never before seen by the public.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

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

The first memorial dedicated solely to the Black troops who fought for the Union.

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

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

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

The headquarters of a secretive order is also a beautifully-designed park.

A ruined hotel with an unlucky history and an eerie present.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

Eons old volcanic activity created one of the most stunning rock formations in the United States.