The most massive structure in the Universe, the Hercules-Corona Borealis Great Wall, challenges cosmological models with its ...

"The Great Wall impresses everyone who sees it for the ... “This area is forested with crown pines and also full of fruit trees on the hills and in orchards—chestnut, apple, pear, and apricot ...

Construction continued up to the Ming dynasty (1368–1644), when the Great Wall became the world's largest military structure. Its historic and strategic importance is matched only by its architectural ...