This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

This turn of the century masterpiece has a mysterious goaty interloper.

This print shop boasts one of the largest pinball arcades in San Francisco.

A sprawling cave network created by a lone lava tube.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

Where Santa Claus held up a Texas bank and started a statewide manhunt.

Legend says the horned lizard spent 31 years sealed in a time capsule before he was discovered alive.

Known as one of America's most beautiful public restrooms.

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

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

Stairs often replace streets on the steep slopes of this old mining town.

Collection of vintage trailers double as hotel rooms.

A spiritual vortex among the red rocks in Sedona.

An urban laboratory.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.