Ancient pueblos built into the base of a natural canyon wall.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

An homage to everyone's favorite prehistoric cartoon family.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A self-built castle made by a mysterious man.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

Inside this library turned museum, the history of Modesto and Stanislaus County is on full display.

Here, Father Agapius Honcharenko established his homestead, becoming the first nationally conscious Ukrainian to settle in the United States.

While you're unlikely to find riches here these days, this remote mine is a time capsule of the Gold Rush era.

A lonely monument to the original Silicon Valley tech campus.

An entertaining journey through the odd and strange awaits visitors to this shop.

The oldest structure in a beachside California city was built to serve eight students.

The first privately-owned space capsule to orbit and land carried a secret payload: a wheel of Le Brouère.

This bizarre hotel on historic Route 66 has been plagued by rumors of paranormal activity.

Apple memorabilia in an undisclosed warehouse, hidden for undisclosed reasons.

A B-17 bomber stands as a memorial to the residents of Tulare County who served in World War II.

Worker-owned cooperative and resource for those looking to lighten their ecological footprint.

An elegant sandstone stairway built by the WPA still connects two neighborhoods in Akron.

This collection of ferns from across the globe is the largest assortment in the United States.

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

Tasked with beautifying a disused stretch of industrial land one artist filled a hole with grass.

This ancient trail has claimed the lives of over 2,000 people.

Astronomers plan to launch a space telescope into orbit, to find out what exactly stands in the way of an asteroid hitting Earth.