The World’s Most Unusual Hotels

While traditional hotels hold their own charms, for a truly unique travel accommodation experience seek out some of the world’s most unusual hotels, from tree houses to under-water rooms.

A photo posted by Aydınlı Cave Hotel (@aydinli_cave_hotel) on Feb 1, 2017 at 1:51am PST

Stay in a hotel made entirely from salt in Bolivia, from the walls and ceilings to the tables and chairs, or a recently converted jail in Boston, featuring original remnants of jail cells.

In Göreme, Turkey, you’ll find the Aydinli Cave House Hotel, a hotel carved from natural rock more than 750 years old. Release your inner child at Sweden’s Treehotel, a futuristic accommodation featuring several treetop suites, all decorated differently, from birdhouses to flying saucers.

A photo posted by Earthship Biotecture (@earthship) on Feb 1, 2017 at 5:02pm PST

Space enthusiasts will love Earthship Biotecture in New Mexico, a hotel designed by the Earthship Project that allows guests to sleep in sustainable pods made from recycled materials that generate power and grow food.

Go underground in Sweden — 500 feet underground to be exact — for a night in the Sala Silvermine Underground Suite. The suite was carved out of rock in the 18^th century by silver miners and features silver furniture, potential claustrophobia and a constant 36-degree temperature.

A photo posted by LeadDigital | Hospitality (@leaddigitaluk) on Feb 4, 2017 at 1:36pm PST

If privacy is not on your priority list, check out the Bubble Tree in France, comprised of inflatable transparent pods that are becoming increasingly popular throughout Europe. Guests will feel like they’re sleeping under the stars and can fall asleep surrounded by sights such as 16^th-century castles or forests.

If the ocean calls your name, stay a couple nights submerged 13 feet under the sea off the coast of Zanzibar at the Manta Resort, or fall asleep with the fish at Resort World Sentosa in Singapore, which features bedrooms that look into an enormous aquarium, home to more than 40,000 marine animals.

A photo posted by Snorkel Around The World (@snorkel.around.the.world) on Feb 4, 2017 at 4:26pm PST