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    Architecturally, there is nothing more boring than the many bland motels and hotels that dot our landscape. Sure, they’re practical, economical and serve their function, but sometimes you want an adventure. Something that influences your dreams. (Or nightmares.) Maybe some of these will make your bucket list. When you feel the call, here are 15 of the weirdest hotels in the world.

    1. Icehotel - Jukkasjarvi, Sweden

    Literally built fresh each year, the Icehotel is the largest hotel made of ice and snow. In March, they harvest ice from the Torne River and begin the build. When the sun rises in April and starts to melt the structure, the hotel closes until the next season. Beware, it gets cold.

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    2. Quaker Square Inn - Akron, Ohio

    Built in the 1930’s, the hotel springs from one of 36 converted silos once used by Quaker Oats for storage. Each room conforms to the round shape of the silo and is decorated with traditional furnishings. The University of Akron is nearby.

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    3. The Madonna Inn - San Luis Obispo, CA

    Each of its 110 rooms has a different theme ranging rom Caveman to Yosemite Rock, with nearly every variation in between. No two rooms are alike. You could visit over and over and never sleep in the same room twice! (Some guests are obsessive-compulsive enough to make it through every one.)

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    4. The Bird’s Nest Treehotel - Harads, Sweden

    Built in 2010 and located in Sweden, you too can live in the trees in a place that looks like its title. The hotel also sports a Mirrored Cube room, a UFO room, and even a Tree Sauna. It’s like a kid’s dream come to life.

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    5. Hotel Fox - Copenhagen, Denmark

    Akin to America’s The Madonna Inn, Hotel Fox offers unique rooms created by artists. Shown here is “Diamonds,” a room described as "youthful decadence." For a complete gallery of the rooms, click here.

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    6. The Airplane Suite - Teuge, Netherlands

    Decked out for two guests to stay in luxury comfort, the Airplane Suite is a Cold War-era Ilyushin 18 plane built in 1960. It could accommodate a total of 120 passengers. After the unification of Germany, the plane served as a restaurant until it became a hotel in 2007.

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    7. Propeller Island City Lodge - Berlin, Germany

    Maybe the designers inhaled too many illegal substances, but either way, these themed rooms are one-of-a-kind. For example, the Mirror Room: A diamond-shaped room is completely laid out with mirrors and gives you the impression of living in a kaleidoscope.

    Equally as topsy-turvy is the upside down room, pictured here. Uncannily surreal!

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    8. The Marmara Antalya - Sirinyali Antalya, Mahallesi, Turkey

    You’ve seen rotating restaurants, now witness a hotel. Located on cliffs, it’s the world’s only spinning hotel that rotates on its foundation for a stunning view. A full rotation takes anywhere between 2 and 22 hours, and is aided by 6 electric motors. Might be odd when you wake up in the morning and think you’re in a different room due to the view.

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    9. Hotel Kakslauttanen - Finland

    The hotel offers 40 cabins, but the main attraction in winter is the Igloo Village, where guests can spend the night in a snow or glass igloo to admire the Northern Lights. 

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    10. Dog Bark Park Inn - Cottonwood, Idaho

    Created by artists Dennis Sullivan and Frances Conklin, the Dog Bark Inn is a bed & breakfast guesthouse inside the World’s Biggest Beagle. Guests enter the body of the beagle from a private 2nd story deck. The restroom is even shaped like a fire hydrant. 

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    11. Kokopelli’s Cave Bed & Breakfast - Farmington, New Mexico

    Carved into 65 million-year old Ojo Alamo Sandstone, the cave is located 70 feet beneath the surface and overlooks La Plata River Valley. It’s a privately owned “luxury cliff dwelling” near the Mesa Verde National Monument. It was conceived as an office for geologic consulting, but became a guest establishment.

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    12. The Liberty - Boston

    Spend your night sleeping in areas that once housed notorious criminals. Finished in 1851 in the “Boston Granite Style,” this structure was the Charles Street Jail for 120 years. After going through remodeling, it opened in 2007 as a luxury hotel. (How cool would Alcatraz be as remodeled hotel?)

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    13. Jules Undersea Lodge - Key Largo, Florida

    Those with a fear of water need not apply. To enter the lodge, you have to scuba dive to the entrance. It’s 21 feet beneath the surface and has been described as discovering a secret underwater clubhouse. The cottage, which started off as a research laboratory, has hot showers and other amenities.

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    14. Treehouse Lodge - Litchfield Hills, Connecticut

    A suspended, double-storied structure, as described on its website, entering Winvian’s Treehouse is “like trespassing, like stumbling into a secret, high above ground, swinging in the breeze and granting an unadulterated look at nature.” Comes with a full bar. Just don’t fall out.

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    Next: 10 Most Amazing Hotel Pools

    15. Nine Hours Hotel - Kyoto, Japan

    Redefining what a hotel is, the Nine Hours Hotel calls this a “sleeping hub.” Looks like a beehive to me.