This statue includes the molehill that toppled a king.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

Country fans may flock to Nashville's music scene, but this Appalachian town is where the genre was born.

The birthplace of Appalachia's only first lady, who some have dubbed the United States' "first female president."

One street divides a single town that stands in two U.S. states.

Before TV meteorologists, there were weather kiosks. This may be the last one in the United States.

The secret city built by the Manhattan Project.

This improbable contraption was passed down through five generations of industrious Tennesseans.

This hollow steel globe is the second-largest in the world.

A unique post-modern public space in the middle of the Warehouse District in New Orleans.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

The National Park Service’s best-kept secret with views that rival any in D.C.

Underneath this water pump, Annie Sullivan helped Keller speak her first words.

A building so large that it has its own weather.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

St. Augustine's record-setting narrow street was designed to protect against pirates.

Location of a reliquary containing bone fragments of 18 saints.