© Reuters

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.

© Reuters

The Treehotel, Sweden -

Address: Edeforsvägen 2A, 960 24 Harads

(Photo: Flickr/CC BY-ND 2.0)

© Flickr/Creative Commons

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

© Reuters

BaseCamp Young Hostel, Germany -

Address: In der Raste 1, 53129 Bonn

© Reuters

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.'

© Reuters

The Panda Inn, China -

Location: Mount Emei, Leshan, Sichuan

© Reuters

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

© Reuters

LEGOLAND Hotel, USA -

Address: 1 Legoland Dr, Carlsbad, CA 92008

© Reuters

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

© Reuters

Book and Bed, Japan -

Location: Nishiikebukuro, Toshima, Tokyo 171-0021

© Reuters

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.

© Reuters

Nine Hours, Japan -

Its first location opened in 2009, before opening a number of hotels across Japan.

© Reuters

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.

© Reuters

Alcatraz Hotel, Germany -

Address: Morlauterer Str. 1, 67657 Kaiserslautern

© Reuters

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.

© Reuters

Dasparkhotel, Austria -

Address: Rodlstraße 21, 4100 Ottensheim

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

© Reuters

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.

© Reuters

Alpha Resort-Tomamu, Japan -

Location: Tomamu Station, Shimukappu, Hokkaidō

© Reuters

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

© Reuters

Salt hotels, Bolivia -

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

© Reuters

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.

© Reuters

Eh'häusl, Germany -

Address: Seminargasse 8, 92224 Amberg

© Reuters

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

© Reuters

Full Llove Inn, Netherlands -

Address: Oostelijke Handelskade 34,
Amsterdam, Netherlands

This unusual "room" was a temporary art exhibit in 2006.

© Reuters

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.

© Reuters

Jumbo Hostel, Sweden -

Address: Jumbovägen 4, Stockholm Arlanda Airport, Stockholm

© Reuters

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.

© Reuters

Bâlea Lac Hotel of Ice, Romania -

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

See also: The most appealing lakeside hotels

© Reuters