South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Meet some of the most prominent figures in Black history through life-sized wax models.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The first American department store, and home to the largest operating musical instrument in the world.

This park contains a number of standing stones meant to heal and inspire.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Walk through the history of American pop culture.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

A museum dedicated to exhibiting remarkable outsider art.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

One Confederate statue that accurately reflects the ugliness of its subject.

Historical figures from New York City's Catholic community reside in Midtown.