A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Prolific outsider artist Sid Boyum's concrete sculptures add whimsy to Madison's Schenk-Atwood neighborhood.

A reproduction of earth's many biomes.

America's only nuclear missile silo open to the public.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

A wonderland of caves in eastern Iowa.

Most comprehensive museum in America devoted to one ethnic group.

Eight feet in diameter and more than 24 feet around.

A mysteriously dark cemetery monument fuels stories and legends galore.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

A free, canine-friendly alternative watering hole near the more famous Barton Springs.

Belly up to the bar in Cowtown, don't forget to buy some boots.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This sanguine boulevard was named after a deadly cowboy bar fight.

The cinder cone volcano with a less than complimentary name.

A mysterious spirit totem at the edge of Navajo lands.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This spectacular track has run continuously since 1882.