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This list of tallest buildings in Washington, D.C. ranks high-rises in the U.S. capital city of Washington, D.C. The tallest structure in the city, excluding radio towers, is the Washington Monument, which rises and was completed in 1884. The structure, however, is not generally considered a high-rise building as it does not have successive floors that can be occupied. The tallest habitable building in the city is the Basilica of the National Shrine of the Immaculate Conception, which rises . The second-tallest building in Washington is the Old Post Office Building, which is high. The third-tallest building in the city is the Washington National Cathedral, which rises above grade. The cathedral is built on high ground known as Mount St. Alban, above sea level, which makes the central tower the "highest" point in the District.〔(【引用サイトリンク】url=http://www.nps.gov/nr/travel/wash/dc5.htm )〕 As of November 2011, there are 410 completed high-rises in the city.〔(【引用サイトリンク】title=High Rises of Washington )〕 ==History== Washington's history of skyscrapers began with the completion in 1894 of the 14-story Cairo Hotel, which is considered to be the city's first high-rise.〔(【引用サイトリンク】title=Cairo Hotel Condominiums )〕〔(【引用サイトリンク】title=Cairo Hotel Condominiums )〕 The building rises and 14 floors.〔 Washington went through an early high-rise construction boom from the late 1890s to the mid-1930s, during which time the Old Post Office Building and the Federal Triangle were built. The city then experienced a major building boom from the early 1940s to the late 1990s, during which the city saw the completion of 31 of its 48 tallest buildings, including One Franklin Square and 700 Eleventh Street. However, although the city is home to several high-rises, none are considered to be genuine "skyscrapers"; only two completed buildings surpass . The height of buildings in Washington is limited by the Height of Buildings Act. The original Act was passed by Congress in 1899 in response to the 1894 construction of the Cairo Hotel, which is much taller than the majority of buildings in the city. The original act restricted the heights of any type of building in the United States capital city of Washington, D.C., to be no higher than , for residential buildings. In 1910, the 61st United States Congress enacted a new law which raised the overall building height limit to , but restricted building heights to the width of the adjacent street or avenue plus ; thus, a building facing a -wide street could be only tall.〔 However, building heights are measured from the sidewalk or curb to the edge of the roof. Architectural embellishments, mechanical rooms, and common rooftop structures may be exempted from the overall height limit, provided they are setback from the roof line.〔(【引用サイトリンク】url=http://dcoz.dc.gov/dcoz_brochure_013111.pdf )〕 The heights of buildings listed here may therefore exceed the general height limit as measured for the purpose of the city's zoning laws. In modern times the skyline remains low and sprawling, keeping with Thomas Jefferson's wishes to make Washington an "American Paris" with "low and convenient" buildings on "light and airy" streets.〔 Washington's height restriction, however, has been assailed as one of the primary reasons why the city has inflated rents, limited affordable housing, and traffic problems as a result of urban sprawl. To escape the District's height restriction, architects wishing to construct higher buildings close to downtown often do so in Rosslyn, Virginia, directly across the Potomac River from Georgetown. One of the most recently completed buildings in Washington, D.C. is Capitol View, which is high.〔(【引用サイトリンク】title=Capitol View )〕 As of July 2008, there is one high-rise under construction in the city that is expected to rise at least , with one more proposed and one approved for construction. Onyx on First is the only high-rise under construction in Washington; upon completion, it will be the 14th-tallest building in the city.〔(【引用サイトリンク】title=Onyx on First )〕 Two other large developments taking place are Square 54 Residential I, which is proposed for construction, and the PNC Bank Building, which is approved. The Square Residential I building at George Washington University is expected to rise to a height of and 14 stories,〔(【引用サイトリンク】title=Square 54 Residential I )〕〔(【引用サイトリンク】title=Square 54 Residential I (Southeast Residential) )〕 while the PNC Bank Building is expected to rise to a height of and 12 stories.〔(【引用サイトリンク】title=PNC Bank Building )〕 As of July 2008, there is a total of four high-rise buildings under construction, approved for construction and proposed for construction in Washington.〔 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「List of tallest buildings in Washington, D.C.」の詳細全文を読む スポンサード リンク
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