how long is the bullet train from beijing to shanghai
Beijing–Shanghai high-speed railway The Beijing–Shanghai high-speed railway (or Jinghu high-speed railway, from its name in Mandarin) is a high-speed railway 1,318 kilometres (819 mi) long that connects two major economic zones in the People's Republic of China: the Bohai Economic Rim and the Yangtze River Delta.[3] Construction began on April 18, 2008,[4] and a ceremony to mark the completion of track laying was held on November 15, 2010.[5] The line opened to the public for commercial service on June 30, 2011.[6] It is the world's longest high-speed line ever constructed in a single phase.[7][8][9] It is China's most profitable high speed rail line, reporting a 6.6 billion yuan net operational profit in 2015.[1]
Great Wall of China The frontier walls built by different dynasties have multiple courses. Collectively, they stretch from Dandong in the east to Lop Lake in the west, from present-day Sino-Russian border in the north to Qinghai in the south; along an arc that roughly delineates the edge of Mongolian steppe. A comprehensive archaeological survey, using advanced technologies, has concluded that the walls built by the Ming dynasty measure 8,850 km (5,500 mi).[4] This is made up of 6,259 km (3,889 mi) sections of actual wall, 359 km (223 mi) of trenches and 2,232 km (1,387 mi) of natural defensive barriers such as hills and rivers.[4] Another archaeological survey found that the entire wall with all of its branches measures out to be 21,196 km (13,171 mi).[5] Today, the Great Wall is generally recognized as one of the most impressive architectural feats in history.[6]