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The Treehotel, Sweden - Located among the tall trees of Northern Sweden's pine forest, this hotel combines the peacefulness of unspoiled nature with contemporary design and architecture.

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The Treehotel, Sweden -

Address: Edeforsvägen 2A, 960 24 Harads

Prices range between US$508 and US$820 per person per night. (Photo: Flickr/CC BY-ND 2.0)

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BaseCamp Young Hostel, Germany - This creative hostel is comprised of several vintage trailers, vans, motorhomes, and campers placed in a vacant warehouse.

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BaseCamp Young Hostel, Germany -

Address: In der Raste 1, 53129 Bonn

Prices range between US$40 and US$90  per person per night.

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The Panda Inn, China - Creepy or cute? You decide. This panda-themed hotel would not be complete without its panda-dressed staff. The rooms also display various themes, including 'Titanic' and 'Sailor Moon.'

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The Panda Inn, China -

Location: Mount Emei, Leshan, Sichuan.

Prices average between US$24 to US$40 per person per night.

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LEGOLAND Hotel, USA - Located in California, this resort offers—you guessed it—a myriad of Lego-themed rooms.

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LEGOLAND Hotel, USA -

Address: 1 Legoland Dr, Carlsbad, CA 92008

Prices range from US$204 to US$498 per person per night.

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Book and Bed, Japan - In this cozy hostel, guests sleep in tiny, snug cubicles hidden behind library shelves.

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Book and Bed, Japan -

Location: Nishiikebukuro, Toshima, Tokyo 171-0021

Prices range between US$27 and US$56 per person per night.

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Nine Hours, Japan - This capsule hotel was designed with practicality in mind. Its different locations are strategically placed near airports, train stations, and city centers to take the hassle out of traveling.

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Nine Hours, Japan -

Its first location opened in 2009 and the company was established as a corporation in 2013.

Prices range from US$28 to US$108 per person per night.

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Alcatraz Hotel, Germany - The former 19th-century jail has been transformed into a guesthouse that maintains its former theme, albeit inspired by a different, more famous prison.

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Alcatraz Hotel, Germany -

Address: Morlauterer Str. 1, 67657 Kaiserslautern

Prices start at about US$60 per person per night. 

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Dasparkhotel, Austria - Ever dreamed of sleeping in sections of sewer pipe? Look no further. The rooms of this environmentally conscious hotel consist of repurposed metropolitan drainage pipes.

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Dasparkhotel, Austria -

Address: Rodlstraße 21, 4100 Ottensheim

Prices per night are whatever guests wish to or can pay.

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Alpha Resort-Tomamu, Japan - For obvious reasons, this ice hotel only opens in the winter and offers icy beds, Arctic baths facing the white birch forest, and an ice lounge, among many other amenities made of ice.

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Alpha Resort-Tomamu, Japan -

Location: Tomamu Station, Shimukappu, Hokkaidō

Prices start at approximately US$180 per person per night.

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Salt hotels, Bolivia - Bolivia's Salar de Uyuni, the world's largest salt flat, has a few hotels whose structures are made of salt.

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Salt hotels, Bolivia -

Palacio de Sal, Hotel de Sal Luna Salada, and Cristal Samana Salt Hotel are some examples. 

Prices could be anywhere from US$100 to US$200 per person per night.

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Eh'häusl, Germany - The 8-foot-wide hotel is said to be the smallest hotel in the world. Despite covering an area of only 20 sq m (215 sq ft), the hotel offers a flat screen TV, a mini spa, and several other amenities.

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Eh'häusl, Germany -

Address: Seminargasse 8, 92224 Amberg

Prices range between US$62 and US$82 per person per night.

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Full Llove Inn, Netherlands - Another example of art-meets-accommodation, this car-turned-suite was placed outside of a hotel by artist Federico D'Orazio to encourage more love in the city of Amsterdam.

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Full Llove Inn, Netherlands - The former Opel Kadett served as a temporary love nest for couples willing to climb the 4.5-meter-high poles.

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Jumbo Hostel, Sweden - Set in a former Boeing 747 jumbo jet, this quirky hotel is appropriately located next the to Stockholm Arlanda Airport. The "cockpit suite" (pictured) is the hotel's most prestigious room.

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Jumbo Hostel, Sweden -

Address: Jumbovägen 4, Stockholm Arlanda Airport, Stockholm

Prices range from US$49 to US$151 per person per night.

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Bâlea Lac Hotel of Ice, Romania - This hotel features ice everything: chairs, beds, and even chandeliers that hang from ice ceilings. It isn't called Hotel of Ice for no reason.

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Bâlea Lac Hotel of Ice, Romania -

Location: The Bâlea Lake is a glacier lake situated in the Făgăraș Mountains of Cârțișoara, Sibiu County.

Prices start at about US$89 per person per night.

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