A museum dedicated to the alleged Roswell Incident.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

The remains of a ruined mansion memorialize the 1906 earthquake.

A hidden subterranean installation offers a view of the sky.

Tiki luxury on Nob Hill.

A psychedelic labyrinth on the San Francisco bay.

An eatery for UFO seekers on the Extraterrestrial Highway.

One woman's lifelong collection is on display in this unassuming house on an Icelandic fjord.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A giant red chair bolted to a rock on a remote mossy hillside in Iceland.

This fairytale-like structure is the last turf church ever constructed in Iceland.

There's nothing creepier than a cemetery next to a clown motel.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Dioramas and animatronics lead you through the story of Bhagavad-gita, the Indian literary classic.

Elevated freight railway turned wildly successful urban park.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This conservatory allows a little bit of the tropics to thrive in the middle of a major Canadian city.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

World's largest collection devoted to one fruit.

A bright California graveyard with a decidedly dark side.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.