The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

This family-owned diner has been slinging chili dogs since 1940.

The walls of the iconic dome are hollow and have a secret stairway.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

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

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

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Time travel with sweets across history at this research-based candy store.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This now-protected stone circle is an archeological mystery and a stellar viewpoint.

An ancient cave with connections to the American Revolution.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This historic Art Nouveau mansion has guided tours and impressive views of the Currituck Sound.

This 1920s mansion in the Outer Banks has some of the best examples of Art Nouveau ornamentations in the United States.

Born from segregation and exclusion, Durham’s Black Wall Street is now a living reminder of the city’s past

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.