Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Rainbow-hued local gem in Venice.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

One man's homage to the sun continues to grow like a glass fractal.

The latest in a series of long glass bridges suspended at terrifying heights.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Machinery left over from California's once thriving mercury industry now attracts artists and explorers.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The true depths of these stunning Moroccan caves are unknown.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

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

A 1920s speakeasy that had rum runners racing up and down the shores of California.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.