A local scoured more than 1,000 acres for stone to create his masterpiece.

The world's longest known cave system.

Prehistoric animals decorate this popular outdoor park.

Moonbows over Kentucky.

Located inside a former bread factory, this museum explores a century of transportation history through innovations that were extraordinary or failures—sometimes both.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

It may take some time to locate, but it's sure to warm even a heart of stone.

An abandoned town is hidden in Great Smoky Mountains National Park.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

This relic of transportation history still stands in this Indiana city.

The modern museum honors the achievements of the state's all-star athletes.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.