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The Olympic Park Observation Tower () is located on Kehui Road South, part of the Olympic Green in the Chaoyang District of Beijing, China. Construction began in 2008, to coincide with that year's Summer Olympics; it was completed and opened in 2014. It is used strictly for observation; there is no provision for offices or apartments.〔 The design was by a Chinese firm, China Architecture Design & Research Group;〔 a Shenzhen architect alleged that the architects at the firm had plagiarized an award-winning earlier design of his. At in height it is the second tallest tower in the city after the Central Radio & TV Tower, and the fourth-tallest structure in the city. Its design, with four smaller circular floors at different heights and positions below a larger top floor, is meant to echo the Olympic rings. The overall design was inspired by blades of grass; however it has also been likened to "huge nails".〔〔 ==Structure== The tower sits on a landscaped parcel at the northeast corner of the intersection of Kehui South Road and Tianchen Road, a wide pedestrian promenade. The surrounding terrain is level, consisting mostly of urban open space such as planted parkland or open plazas. To the east is a long curving artificial waterbody that bounds the Olympic Green neighborhood in that direction; on the other side the first block is either more open space or large buildings such as the China Science and Technology Museum, after which denser urban development and taller buildings begin. On the west similar medium-rises begin after two large blocks. One block to the north is the South Gate of Forest Park Station on Line 8 of the Beijing Subway. North of it is the Olympic Forest Park, a nature preserve that extends to the city's Fifth Ring Road. To the south, after another open block, are the former Olympic sport venues such as the China National Convention Center and Beijing National Stadium, known colloquially as the Birds' Nest. The south boundary of the Olympic Green, the Fourth Ring Road, is just beyond.〔 The five separate towers rest on an extensive concrete foundation with of exposed surface. A slight landscaped rise surrounds their base, from which all five circular steel towers rise. The largest and tallest, in total height, is surrounded by the other four.〔 The lesser towers reach different heights, with the lowest at .〔 Large diagonal members connect the lesser towers to the main structure. All the towers widen at their flat-roofed tops to allow the use of the space inside as observation platforms. The lesser tower tops spiral up to the main one.〔 The solid steel exterior parts into latticework to allow views from the glass behind them.〔 Two elevators, operating independently of each other, carry visitors up the central tower.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Olympic Park Observation Tower」の詳細全文を読む スポンサード リンク
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