A trading post in the North Pole where children send letters.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

But did the famous feminist and abolitionist ever really say those iconic four words?

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

This North Carolina store preserves a historic moment in America's movement for racial equality.

A decaying building marks the site associated with Emmett Till's brutal 1955 murder, which helped sparking the civil rights movement.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

The birthplace of a titan of American cinema.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Even Henry David Thoreau found this glacial pothole irresistible.

A mysterious shape catches the eye in this 16th-century painting.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The largest earthwork effigy in the world.

Native Americans built this circle of stones, which was used to predict astronomical events.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Colorful Native American paintings are hidden within this small cavern.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A strange rock formation with numerous legends trying to explain it.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."