杂草公主/yl
Great Wall of ChinaChinese Wanli ChangchengDefensive wall, northern China.One of the largest building-construction projects ever carried out, it runs (with all its branches) about 4,000 mi (6,400 km) east to west from the Bo Hai (Gulf of Chihli) to a point deep in Central Asia. Parts of the fortification date from the 4th century BC. In 214 BC Shihuangdi connected existing defensive walls into a single system fortified by watchtowers. These served both to guard the rampart and to communicate with the capital, Xianyang (near modern Xi'an) by signalsmoke by day and fire by night. Originally constructed partly of masonry and earth, it was faced with brick in its eastern portion. It was rebuilt in later times, especially in the 15th and 16th centuries. The basic wall is about 30 ft (9 m) high, and the towers rise to about 40 ft (12 m). It was designated a UNESCO World Heritage site in 1987. 长城 亦称万里长城(Wanli Changcheng)。 中国北方防御性的屏障，是人类建造的大规模建筑工程之一。东起渤海，向西延伸到中亚深处，若将其支段计算在内，总长约6,400公里(4,000哩)。其中部分堡垒的历史可追溯至公元前4世纪。公元前214年秦始皇将当时存在的城墙，连结成一整套防御体系，并设置了望台增强其功能。了望台既可护卫城墙，并可藉由讯号(白日升烟、夜晚燃放火光)向首都咸阳(今西安附近)传递讯息。长城本来有部分是以石头和泥土建成，但其东段则以砖块覆盖表面。长城于后世续有修建，特别是在15～16世纪。长城的基本高度约为9公尺(30呎)，了望台则高达12公尺(40呎)。1987年长城被列为世界遗产保护区。
ly的天空
The Great Wall is an ancient defense project with the longest construction time and the largest quantity in the world. It has been continuously constructed for more than 2000 years.
It is distributed on vast land in northern and central China, with a total length of more than 50,000 kilometers.
长城是中国也是世界上修建时间最长、工程量最大的一项古代防御工程，延续不断修筑了2000多年，分布于中国北部和中部的广大土地上，总计长度达5万多千米。
扩展资料
长城，是古代中国为抵御不同时期塞北游牧部落联盟的侵袭，修筑规模浩大的隔离墙或军事工程的统称。长城东西绵延上万华里，因此又称作万里长城。
现存的长城遗迹主要为始建于14世纪的明长城，西起嘉峪关，东至虎山长城，长城遗址跨越北京、天津、山西、陕西、甘肃等15个省市自治区，总计有43721处长城遗产，长城也是自人类文明以来最巨大的单一建筑物。
2012年，国家文物局完成了长城资源认定工作，将春秋战国至明等各时代修筑的长城墙体、敌楼、壕堑、关隘、城堡以及烽火台等相关历史遗存认定为长城资源，将其他具备长城特征的文化遗产纳入《长城保护条例》的保护范畴。
根据认定结论，各时代长城资源分布于北京、天津、河北、山西、内蒙古、辽宁、吉林、黑龙江、山东、河南、陕西、甘肃、青海、宁夏、新疆15个省（自治区、直辖市）404个县（市、区）。
认定数据如下：各类长城资源遗存总数43721处（座/段），其中墙体10051段，壕堑/界壕1764段，单体建筑29510座，关、堡2211座，其他遗存185处。墙壕遗存总长度21196.18千米。
参考资来源：国家文物局-中国长城保护报告
欢乐空间装饰
1、The Great Wall is located in the northern part of China, it Shanhaiguan in Bohai Bay, Hebei Province, east, west to Jiayuguan in Gansu Province inland areas. Trans-Hebei, Beijing, Inner Mongolia, Shanxi, Shaanxi, Ningxia, Gansu and other seven provinces, municipalities and autonomous regions, and total length of about 6,700 kilometers, about 13.3 thousand years, in the world, the Great Wall reputation. The Great Wall in Chinas vast land of the north east and west lie the rolling one, imposing, as long as more than ten thousand li long wall. This is considered the worlds architectural history of the Great Wall a great miracle. Great Wall is Chinas ancient defense project is a great crystallization of ancient Chinese peoples strong determination and a high degree of wisdom in ancient China embodies the remarkable achievements of engineering technology, but also shows the Chinese nations long history. 2、长城位于中国的北部，它东起河北省渤海湾的山海关，西至内陆地区甘肃省的嘉峪关。横贯河北、北京、内蒙古、山西、陕西、宁夏、甘肃等七个省、市、自治区，全长约6700公里，约13300里，在世上有“万里长城”之誉。 万里长城在我国北方辽阔的土地上，东西横亘着一道绵延起伏、气势雄伟、长达一万多里的长墙。这就是被视为世界建筑史上一大奇迹的万里长城。万里长城是我国古代一项伟大的防御工程它凝聚着我国古代人民的坚强毅力和高度智慧，体现了我国古代工程技术的非凡成就，也显示了中华民族的悠久历史。
