Secret North Korean passage discovered below the world's most dangerous border.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The state bird of New Mexico, constructed entirely out of garbage.

This quirky outpost and gallery inside a former church is an unexpected trove of handcrafted art.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

An antique horse-drawn hearse provided French luxury for the dead in this Texan town.

The only Native American comic shop in the world.

A replica of the first public theater built in California.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This private residence was the template for one of the most beloved television homes of all time.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The legendary building that needed ghostly approval before being built.

A 140-year-old castle with underground caves hidden in San Francisco.

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.