Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

This odd California folly seems like it was almost designed to accumulate urban legends.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

The largest permanent Monopoly board makes one of the longest games even bigger.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Junkbots and mud babies are the masterpieces in this fantastically sci-fi art museum.

The former Naval shipyard is open for exploring - mostly.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

A geological mystery on Camelback Mountain.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

To honor his gardening wife, this yard artist turns bowling balls into playful, colorful sculptures.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

Home of the International Space Hall of Fame.

The world's only museum devoted solely to the art and collection of action figures.