
These are the modern architectural wonders of the world.
Take a look at some of the most unusual and creative buildings across the globe.
The house was built in 1968 by a group of young men who decided that the rock on the river was an ideal place for a tiny shelter, according to the house's co-owner, who was among those involved in its construction.
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A suspected illegal construction is seen covered by green plants atop a 19-storey residential building in Guangzhou, China.
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People sit in front of a house, which was built upside down by Polish architects Irek Glowacki and Marek Rozhanski, in the western Austrian village of Terfens.
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An aerial view of a building shaped like a clay teapot is in Wuxi, China.
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A very thin house is pictured at the end of a terrace in London.
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A car stops beside a house in the middle of a newly built road in Wenling,China.
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A house partially built in the shape of an airplane in Abuja, Nigeria.
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Houses are seen on the rooftop of a factory building in Dongguan, China.
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Postal worker Glenn Gray passes a piece of public art, depicting a sliding house in a residential road in Margate, southern England.
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A lavatory-shaped house, Haewoojae, which means the house for satisfying one's anxiety, in Suwon, South Korea.
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A man takes a picture of the one of the world's narrowest buildings, built as an artistic installation wedged between two existing buildings, in Warsaw, Poland. The building just 92 cm (36 inches) wide as its narrowest point.
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A laborer works at an upside-down house under construction at Fengjing Ancient Town, Jinshan District, south of Shanghai, China.
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A privately built villa, surrounded by imitation rocks, on the rooftop of a 26-storey residential block in Beijing.
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People pray around Saint George, one of the 11 monolithic rock-cut churches, during a Good Friday celebration in Lalibela, Ethiopia.
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A privately-built illegal temple-like structure on the top of a 20-storey residential block in Shenzhen.