Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This abandoned amusement park was built on a site with a dark history.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

A beautiful geyser under environmental threat.

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

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Odd outsider art installations surround a Gold Rush-era ghost town.

A strange house built only at night, with rumored mystic inspiration.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Enormous lake at the bottom of a unique cave system.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A giant Troll lurks under one of Seattle's oldest bridges.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Resting place of Hollywood's immortals is also site of summer film screenings.

The ghostly remains of an accidental sea.