Community owned and operated, this property is home to a diverse set of nudists.

Geothermal waterfalls in Tuscany.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Handcrafted thermal spa washes away each night with the tide.

A trio of hidden hot tubs takes advantage of Iceland's natural geothermal vents.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

A steaming, boiling hellscape sources Hokkaido's thermal baths.

A rare festival blending religion, blacksmiths, vagina dentata, sex workers, and the straight-up facts of life.

This 700-year-old street food market features baby octopus and soy donuts.

Nine Gardens in one—with tea service.

Experience park where visitors are told to expect the unexpected.

A magical place that lets you play in and explore the world of Studio Ghibli.

No one is quite sure of the origins of these idyllic natural hot springs at an abandoned mountain resort.

This historic tower in the California desert promises visitors a "vortex of good vibes".

Hot springs monkey spa in the middle of Hell's Valley.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

Hollowed out cedar log tubs set in an ancient towering forest.

There are eight natural springs around town, each with a slightly different taste.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

One of the last free public hot springs is decorated with hippie art.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

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