The secret city built by the Manhattan Project.

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

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

The oldest building in Charleston was used to store gunpowder during the American Revolution.

An advertising mural tempering the behavior of Charleston’s children since the late 1800s.

The record holder for the world’s largest peach.

A nearly century-old amusement park is quietly decaying in a riverside forest in South Carolina.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

This nine-story building can be played like an instrument.

From golden eagles to peregrine falcons, this rehabilitation and education center is a haven for birds of prey.

Visit the natural wonder inspired by an indigenous legend and the quaint town that bears its name.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A 1850s pioneer village and interactive museum detail the history of the Wabash Canal in Indiana.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

At the turn of the 20th century, the Minnehaha County courthouse played host to sensational public divorce trials.

This Wild West attraction is alive with glitching automatons.

A roadside collection of over-sized iron creations that are a bit more macabre than most.