There's nothing wrong with staying in a traditional hotel, but once in a while, don't you just want to stay someplace different? Really different?
You might not find an ice maker down the hall in all of these places, but then again, you might wind up sleeping on a bed of ice.
Click through to see 10 of the most unusual hotels in the world.
Tierra Patagonia Hotel & Spa, Torres del Paine National Park, Patagonia, Chile
Located on one of the largest sheep estancias in Southern Patagonia, this new 40-room resort (it opened in December 2011) was designed by three of Chile's leading architects to look like a fossil rising out of the earth.
The hotel overlooks the blue waters of Lake Sarmiento at the edge of Torres del Paine National Park, a glacier-studded UNESCO Biosphere Reserve where Andean condors soar and guanacos roam. Prices start at $1,950 per person for three nights, including accommodations, meals, transfers and excursions.
Tsala Treetop Lodge, South Africa
If you want a bird's-eye view of the lush forest canopy in South Africa, you can't do much better than Tsala Treetop Lodge: It's built right into the treetops. Elevated wooden walkways meander through the trees and provide access to guest rooms. Each is constructed of stone, wood and glass and features a luxurious bedroom, elegant sitting room with a fireplace, and a spacious bathroom. You'll also enjoy a private infinity pool that seems to be suspended in air.
Day excursions include visits to a primate sanctuary; the largest aviary in the world; a safe haven for rescued African elephants; Rhino Base Camp, which offers sightings of rhinoceros, hippopotamus, buffalo, giraffe, lion and antelope; and Cango Caves, one of the world’s natural wonders.
Prices start at $230 per person, double occupancy, for a Treetop Suite, and include breakfast.
Hotel Kakslauttanen, Lapland, Finland
Located above the Arctic Circle in Lapland, the Hotel Kakslauttanen offers something for just about everyone. Log cabin? Check. Honeymoon chamber made from stripped birch and featuring a “Las Vegas-style” bathroom? Check. Glass igloo providing stunning views of the northern lights? You bet.
Winter activities include reindeer safaris, ice fishing and cross-country skiing. You can view the northern lights from late August to late April. During the summer, you can fish, pan for gold or hike under the midnight sun. Prices start at $74 per person per night in a log cabin, or $186 per person per night in a glass igloo.
Jumbo Stay, Stockholm, Arlanda Airport, Sweden
Why take a plane to your destination when a plane itself can be your destination? Hotelier Oscar Diös bought a 747-200 jumbo jet, removed the seats and retrofitted the fuselage to house 76 beds in 27 rooms. Don't want to sleep with the hoi polloi? Upgrade to first class. The jet features both a "Cockpit Suite" and a "Black Box Suite." Prices range from $57 per person per night for a dorm bed to $471 for a night in the cockpit.
Icehotel, Jukkasjärvi, Sweden
This winter, the world's largest hotel made of ice and snow will open for its 23rd season -- after it’s rebuilt in November and December, of course. Each year, Icehotel is constructed anew by artists from around the world, and then it melts away in the spring.
When you’re not sawing logs on a reindeer-skin-covered ice bed in sub-freezing temperatures, you can view the northern lights by snowmobile, go dog- or reindeer-sledding, watch moose, learn to sculpt ice or mingle at ICEBAR. Just remember to leave your luggage in the heated part of the hotel; otherwise, it will freeze in your room.
Prices start at $257 per person per night for cold accommodations (the hotel also offers heated rooms) and include warm clothes, gloves, shoes, breakfast and a morning sauna.
Capsule Ryokan Kyoto, Kyoto, Japan
Japan's legendary capsule hotels provide a cozy place to sleep at an affordable price. Capsule Ryokan Kyoto offers the classic capsule experience, but with a traditional twist. Just 39 inches high and wide, and 81 inches long, the stacked capsules feature flat-screen televisions, lockable luggage storage and traditional tatami mats. An overnight stay at the Capsule Ryokan Kyoto is 3500 yen per person per night, or roughly $44.
Jules' Undersea Lodge, Key Largo, Fla.
You can't help but get wet at Jules' Undersea Lodge. In fact, that's exactly the point. It's the world’s only underwater hotel. To get there, you have to scuba dive 21 feet below the ocean surface. Once inside, you’ll find all the creature comforts you’re used to on land: hot showers, a well-stocked kitchen, books, music and movies. Plus, you’ll have a fabulous view of the underwater habitat right from your bed.
The lodge started out as a research laboratory off Puerto Rico. Now it sits on legs and offers two bedrooms and a common area. Guests can enjoy diving or dive instruction, and can opt for a "mer-chef" who dives down to prepare a gourmet dinner. Rates start at $275 per person per night.
Sala Silvermine, Sala, Sweden
You'd better not be claustrophobic if you plan to visit this hotel; its Mine Suite is located more than 500 feet below the Earth’s surface. It's part of a silver mine that was constructed in Sweden in the 18th century. Although the mine itself is only about 35 degrees, the suite is heated to 64 degrees -- still nippy, but comfortable with the extra blankets provided. Accessed via an elevator, the suite features silver furniture and is surrounded by intriguing rock formations.
For $570 a night for two, guests receive a guided tour, dinner with wine, and breakfast the next morning. Activities include cave diving and exploring a high-wire adventure track with ropeways, hanging bridges and other high-altitude challenges.
Hotel Endemico, Ensenada, Baja California, Mexico
This chic, ultra-green eco-retreat opened July 1 in Baja California's ascendant wine region. It features 20 "EcoLofts" constructed of Corten steel and wood, each raised off the ground to minimize the impact on the desert. Combining sleek, simple furnishings with touches of luxury, each room features a king-size bed and private terrace with a clay kiva fireplace. Amenities also include a pool, winery and gourmet restaurant. Situated 90 minutes from San Diego, the area is home to some of Mexico's largest wineries. Rates start at $175 per night.
Next: The 30 Best Places to Watch the Sunset
Necker Island, British Virgin Islands
Imagine having your own private island. At Necker Island, Sir Richard Branson’s private, 74-acre hideaway, you can. Either rent the entire island for your own use -- it accommodates up to 28 guests -- or, during select weeks throughout the year, book an individual room and share the island with others. Rates start at $26,850 per couple per week, including accommodations, meals and most activities. Adventurous types can even go for a spin in the Necker Nymph, a three-person submarine.