Take a look at some of the unique architectural marvels of the world.
1. The Crooked House (Poland)
The Krzywy Domek (Crooked House) is an irregularly-shaped building in Sopot, Poland. Built in 2004, it is part of the Rezydent shopping centre.
Amazing Pics: The world's 25 unusual buildings
Image: Forest Spiral- Hundertwasser Building.
Amazing Pics: The world's 25 unusual buildings
Image: Torre Galatea Figueras.The giant egg sculptures are the biggest attraction here.
The Salvador Dali Theatre Museum in Figuerasis is named after Dali's wife. Dali lived there till his death in 1989.
Amazing Pics: The world's 25 unusual buildings
Image: Ferdinand Cheval Palace.An amazing architectural wonder, it was built by a postman, Ferdinand Cheval.
The French postman spent thirty-three years building this ideal palace. It is said that he tripped on a stone and was inspired by its shape. He returned to the same spot and started collecting stones for the building.
Amazing Pics: The world's 25 unusual buildings
Image: The Basket BuildingThis is certainly the world's largest basket.
The seven-storey corporate headquarters of the Longaberger Basket Company is an amazing 180,000-square-foot building, a replica of the company's famous market basket.
Built at a cost of $30 million, it was completed in two years.
Amazing Pics: The world's 25 unusual buildings
Image: Kansas City Public Library.The Kansas City Public Library stands out with its unique semblance to books. Kansas City has many architectural wonders.
Amazing Pics: The world's 25 unusual buildings
Image: Wonderworks.WonderWorks is an amusement park for the mind combining education and entertainment with over 100 hands-on exhibits.
The most striking aspect is how the building looks as if it has landed upside-down.
The inversion tunnel has been designed to realign orientation so that you can defy gravity and play with all the exhibits and experiments.
Amazing Pics: The world's 25 unusual buildings
Image: Habitat 67.Habitat 67 is a housing complex and landmark located on the Marc-Drouin Quay on the Saint Lawrence River in Quebec, Canada.
Designed by architect Moshe Safdie, it is based on his master's thesis at McGill University.
Amazing Pics: The world's 25 unusual buildings
Image: Cubic Houses.Kubuswoningen, or cube houses, are a set of innovative houses built in Rotterdam and Helmond in The Netherlands.
Designed by architect Piet Blom in 1984, he tilted the cube of a conventional house to 45 degrees, and placed it on a hexagon-shaped pylon.
Amazing Pics: The world's 25 unusual buildings
Image: Hang Nga Guesthouse.Known as the 'Crazy House' it is an unconventional building designed and constructed by Vietnamese architect Dang Viet Nga.
The building's overall design resembles a giant tree, with a sculptured design element representing natural forms such as animals, mushrooms, spider webs and caves.
Amazing Pics: The world's 25 unusual buildings
Image: Chapel in the Rock.Designed by Marguerite Brunswig Staude, a student of Frank Lloyd Wright, the Chapel of the Holy Cross.
The Chapel of the Holy Cross is built into a red rock roost that offers beautiful views of the majestic Cathedral Rock
Completed in 1956, it attracts a large number of tourists.
Amazing Pics: The world's 25 unusual buildings
Image: Dancing Building.Designed by Croatian-Czech architect Vlado Milunic, the Dancing Building was completed in 1996.
It has a roof-top restaurant and the several multinational firms.
Amazing Pics: The world's 25 unusual buildings
Image: Calakmul building.The building resembles a washing machine. Santa Fe in Mexico stands out with its extraordinary architecture developed in the early 1990's.
Amazing Pics: The world's 25 unusual buildings
Image: Kettle House.The Kettle House is a unique structure. It was built in the 1950′s.
Amazing Pics: The world's 25 unusual buildings
Image: Manchester Civil Justice Centre.The Manchester Civil Justice Centre is a building houses the Manchester County Court and the Manchester District Registry of the High Court, as well as Manchester City Magistrates' Family Courts, the District Probate Registry and the Regional and Area Offices of the Court Service.
It was designed by Australian architects Denton Corker Marshall with engineers Mott MacDonald.
Amazing Pics: The world's 25 unusual buildings
Image: Nakagin Capsule Tower.The Nakagin Capsule Tower houses both residential and office designed by architect Kisho Kurokawa and located in Shimbashi, Tokyo, Japan.
This exceptional capsule architecture was completed in 1972.
Amazing Pics: The world's 25 unusual buildings
Image: Mind House.A fairytale building, it is considered to be in the list of the top 10 creative buildings of the world. The house has three floors and an attic.
Amazing Pics: The world's 25 unusual buildings
Image: Stone House.This stunning house, inspired by the Flintstones cartoons, was constructed between two giant stones on the hillside of Fafe mountains in Portugal.
Its unusual design attracts many tourists from all over the world.
Amazing Pics: The world's 25 unusual buildings
Image: Shoe House.The Haines Shoe House is a shoe-shaped house in Hallam, Pennsylvania.
Built by shoe salesman Mahlon Haines in 1948 as a form of advertisement, the house, which is 25 feet tall has five storeys.
Amazing Pics: The world's 25 unusual buildings
Image: Weird House.
Amazing Pics: The world's 25 unusual buildings
Image: The Ufo House.This bizarre looking building in Sanjhih is actually an abandoned resort project. The extra-terrestrial design makes it an attractive sight.
Amazing Pics: The world's 25 unusual buildings
Image: The Hole House.The Hole House in Texas is an exceptional art work.
Amazing Pics: The world's 25 unusual buildings
Image: Ryugyong Hotel.The Ryugyong Hotel is a 105-storey skyscraper in North Korea. The pyramid-shaped building has a 75-degree slope.
At a height of 330 metres (1,080 ft), it is most prominent feature of Pyongyang's skyline.
Amazing Pics: The world's 25 unusual buildings
Image: The National Library.The National Library has a stunning led display that shines at night. The 23-storey library is designed in the form of a rhombicuboctahedron (diamond).
Designed by architects Victor Kramarenko and Michael Vinogradov, the building is covered with glass panels. During the day, all 24 sides glitter like a diamond.
Amazing Pics: The world's 25 unusual buildings
Image: Grand Lisboa.The tallest building in Macau has been designed by Hong Kong architects Dennis Lau and Ng Chun Man.
This is a 58-floor, 856 feet-tall hotel in Macau.
The casino and restaurants within Grand Lisboa were opened on February 11, 2007, while the hotel was opened in December 2008.
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