A heavenly experience, right here on Terra Firma.

This naturally-sourced hot spring is now home to a clothing-optional resort.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A library of rare occult books in Los Angeles.

This frequently-photographed waterfall takes only a short hike to visit.

A castle that was built stone by stone by an eccentric journalist.

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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

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

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

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

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Where beautiful signs live on forever.

Olfactory delights in San Francisco's Botanical Gardens.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A museum befitting the city responsible for supplying the majority of the world's LSD.

An underwater city for the dead.

Where manatees are the snowbird vacationers in these balmy Florida springs.

A rare view of a preserved Victorian science museum.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

Rainbow-hued local gem in Venice.

The ghostly remains of an accidental sea.