The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

The last street in Pittsburgh that's paved with wood.

This riverside restaurant delivers elegant dining in a historic 1901 train depot. 

Tucked into Pittsburgh’s North Side, the Mattress Factory is a labyrinth of permanent, room-sized installations where artists transform entire spaces into mind-bending, immersive worlds.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This historic library honors the legacy of the British Empire's first children's librarian.

A place to eat for on-the-run agents and espionage enthusiasts.

Nothing to see here.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

A historic ballroom host to famous performers from the big band era to 1980s rock.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

One of the oldest living oak trees in the Southeast.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

A unique botanical garden housed in three giant geodesic domes.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

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

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

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

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.