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  2. Artificial structures visible from space - Wikipedia

    en.wikipedia.org/wiki/Artificial_structures...

    Artificial structures visible from space without magnification include highways, dams, and cities. [1][2][3] The Great Wall of China, often cited as the only human-made structure visible from space, is difficult to discern from even low earth orbit and can require very good viewing conditions. [3][4] Whether an object is visible depends ...

  3. Great Wall of China - Wikipedia

    en.wikipedia.org/wiki/Great_Wall_of_China

    The Great Wall of China (traditional Chinese: 萬里長城; simplified Chinese: 万里长城; pinyin: Wànlǐ Chángchéng, literally "ten thousand li long wall") is a series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadic groups from the Eurasian Steppe.

  4. Cloud Platform at Juyong Pass - Wikipedia

    en.wikipedia.org/wiki/Cloud_Platform_at_Juyong_Pass

    View of the Cloud Platform from the north. The Cloud Platform at Juyongguan (simplified Chinese: 居庸关云台; traditional Chinese: 居庸關雲臺; pinyin: Jūyōngguān Yúntái) is a mid-14th-century architectural feature situated in the Guangou Valley at the Juyongguan Pass of the Great Wall of China, in the Changping District of Beijing Municipality, about 60 kilometres (37 mi ...

  5. CfA2 Great Wall - Wikipedia

    en.wikipedia.org/wiki/CfA2_Great_Wall

    The CfA2 Great Wall has the maximum dimensions of either 500 million or 750 million light years depending on the figure and the reference used. [citation needed] It is 200 million light years in width and about 16 million light years in thickness. Its nearest point is about 300 million light years from Earth, while its farthest point is 550 ...

  6. How is the Great Wall of China still standing? A ... - AOL

    www.aol.com/news/great-wall-china-still-standing...

    Researchers wanted to figure out the best way to help protect the Great Wall of China from wind and erosion, according to a study published Dec. 8 in the journal Science Advances. They noticed ...

  7. A ‘living skin’ is protecting the Great Wall of China ...

    www.aol.com/news/living-skin-protecting-great...

    The Great Wall is the cultural center of Chinese civilization,” he told CNN. “We should do our best to protect it for our next generations. For our children, for our grandchildren.”

  8. William Lindesay - Wikipedia

    en.wikipedia.org/wiki/William_Lindesay

    William Lindesay OBE (born 8 May 1956) is an English author, runner, [1] and conservationist. He is best known for his work in protecting and conserving the Great Wall of China. He first went to China to run on the Great Wall in 1986, making the first documented traverse of the ruins on foot the following year, in 1987, in which he covered ...

  9. File:Great Wall of China, Satellite image.jpeg - Wikipedia

    en.wikipedia.org/wiki/File:Great_Wall_of_China...

    The Great Wall is more than 2000 years old and was built over a period of 1000 years. Stretching 7240 km (4500 miles) from Korea to the Gobi Desert, it was first built to protect China from marauders from the north. Date: 9 January 2001: Source: Great Wall of China. Earth Observatory. NASA. Archived from the original on 4 August 2001. Author