{"it":{"id":"ASI-XIA","kind":"site","sub":"Asia","name":"Chinese pyramids (Xi'an/Xianyang mound tombs; 'White Pyramid' claim)","place":"China","date":"Qin/Han dynasties (INTERPRETATION)","mat":"rammed earth","tags":[],"new":1,"nfacts":5,"nsrc":1,"sum":"A popular story holds that a giant white pyramid about 300 m tall stands hidden near Xi'an. The pyramids that can be measured there are imperial tombs.\n\nThe story names Fred Meyer Schroder in 1912, the US pilot James Gaussman in 1945, and Colonel Maurice Sheahan in 1947, whose sighting the New York Times reported as about 1,000 ft high. The photograph printed with the 1947 story was later identified as Maoling, the tomb of Emperor Wu, according to Ancient Origins.\n\nWhat is hard to square is size. Qin Shi Huang's mound survives to 51.3 m, according to UNESCO, and a popular account gives Maoling about 220 by 220 m and 50 m high. The terracotta army was found in 1974.\n\nThe mainstream view is that the white pyramid is these flat-topped earth tombs, exaggerated in the telling. No source gives any mound a height near 300 m.\n\nWhy does a lost giant pyramid feel more compelling than the real tombs?","why":"A pilot's white pyramid, a newspaper photo of a real tomb, and a search that never ends.","yt":"How do pilot stories grow?","rel":["ASI-011"],"hook":"A 300 m white pyramid near Xi'an is a popular story. The measured pyramids are imperial tombs about 50 m high."},"S":{},"rec":{"id":"ASI-XIA","alias":[],"ms":[{"f":"Qin Shi Huang mausoleum","a":"original / present height","v":"76 / 47","u":"m","o":"","unc":"","by":"Wikipedia Chinese pyramids","yr":"2026","m":"as stated","c":"Wikipedia Chinese pyramids","pg":"","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"S","bb":"","t":"MEASUREMENT","n":"","id":"M3604"},{"f":"Qin Shi Huang mausoleum","a":"base","v":"357 x 354","u":"m","o":"","unc":"","by":"Wikipedia Chinese pyramids","yr":"2026","m":"as stated","c":"Wikipedia Chinese pyramids","pg":"","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"S","bb":"","t":"MEASUREMENT","n":"","id":"M3605"},{"f":"Maoling (Emperor Wu)","a":"base","v":"222 x 217","u":"m","o":"","unc":"","by":"Wikipedia Chinese pyramids","yr":"2026","m":"as stated","c":"Wikipedia Chinese pyramids","pg":"","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"S","bb":"","t":"MEASUREMENT","n":"page structure ambiguous; needs check","id":"M3606"},{"f":"\"White Pyramid\" (Gaussman)","a":"claimed height","v":"1,000 ft (300 m)","u":"ft","o":"","unc":"","by":"Wikipedia Chinese pyramids","yr":"2026","m":"derived","c":"Wikipedia Chinese pyramids","pg":"","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"S","bb":"","t":"INTERPRETATION","n":"claim, not measured","id":"M3607"},{"f":"Hongshan pyramids","a":"culture span","v":"4700-2900 BC","u":"text","o":"","unc":"","by":"Wikipedia Chinese pyramids","yr":"2026","m":"derived","c":"Wikipedia Chinese pyramids","pg":"","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"S","bb":"","t":"INTERPRETATION","n":"","id":"M3608"}],"lab":[],"eng":[],"ori":[],"gaps":[{"a":"key_structure_dims","r":"not found in free sources reached"},{"a":"largest_block","r":"not found in free sources reached"},{"a":"block_mass","r":"not found in free sources reached"},{"a":"stone_count","r":"not found in free sources reached"},{"a":"slope_face_angle","r":"no published face/slope angle in sources reached (often n/a for non-pyramidal sites)"},{"a":"wall_batter","r":"no published batter survey in free sources"},{"a":"orientation","r":"no published azimuth reached"},{"a":"corner_precision","r":"no published precision survey in free sources"},{"a":"levelness","r":"no published levelling survey in free sources"},{"a":"rock_type","r":"not found in free sources reached"},{"a":"geochem_petro","r":"not found in free sources reached"},{"a":"quarry_source","r":"not found in free sources reached"},{"a":"mortar","r":"dry-stone construction or no binder analysis in free sources"},{"a":"tool_marks","r":"no tool-mark study in free sources reached"},{"a":"dating","r":"no absolute date extracted"},{"a":"coords_elevation","r":"no elevation row yet"},{"a":"volume_labor","r":"no volume/labour estimate in sources opened"},{"a":"construction_phases","r":"no phase sequence in sources opened"},{"a":"lab_date_material","r":"no lab date with dated material in sources opened"},{"a":"hydrology_acoustics","r":"no published hydrology/acoustic measurement in sources opened"},{"a":"metals_clamps","r":"no metal/clamp evidence reported in sources opened"},{"a":"excavation_history","r":"no excavation history row yet"},{"a":"artifacts_found","r":"no finds row yet"}],"dat":[],"aa":[{"id":"AA061","a":"claimed height","who":"James Gaussman (1945 pilot account) / AA authors","main":"Qin/Han mound tombs 47-76 m","ms":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","st":"contradicted","n":"claimed 300 m vs measured mausoleum 76 m original; claim height never measured (W18)","nl":2}],"ac":[{"v":"A 1,000 ft 'White Pyramid' stands near Xi'an","who":"James Gaussman (1945 pilot account) / AA authors","url":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442","b":"I","ce":"claimed height not measured; known mounds 47-76 m"}],"me":[{"v":"Han/Qin imperial mound tombs","ev":"enwiki Chinese pyramids","s":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442"}],"ci":[],"cq":[],"sd":[],"sub":[],"site":{"age":"Qin/Han dynasties (INTERPRETATION)","dm":"historical/stylistic (INTERPRETATION)","lab":"NO","weak":"no lab date opened","unesco":"","dens":"STUB"},"co":{"lat":"","lon":"","src":"Wikidata/enwiki (Q252858 (list article, no coords))","agree":"no OSM match","b":"S","note":"Q252858 (list article, no coords); no single point","osm":"no single point"},"src":[{"id":null,"t":"Wikipedia Chinese pyramids","u":"https://en.wikipedia.org/w/index.php?title=Chinese_pyramids&oldid=1359674442"},{"id":"VASI-XIA-2","t":"Shaanxi Provincial Government (English): Xi’an tourism page","u":"https://en.shaanxi.gov.cn/tourism/aic/xa_2120/201712/t20171208_1595263.html"},{"id":"VASI-XIA-3","t":"Shaanxi Provincial Government (English): history and culture page 1595210","u":"https://en.shaanxi.gov.cn/as/hac/ch/201704/t20170427_1595210.html"},{"id":"VASI-XIA-4","t":"Shaanxi Provincial Government (English): history and culture page 1595175","u":"https://en.shaanxi.gov.cn/as/hac/ch/201704/t20170427_1595175.html"},{"id":"VASI-XIA-5","t":"UNESCO World Heritage Centre: Mausoleum of the First Qin Emperor","u":"https://whc.unesco.org/en/list/441/"},{"id":"VASI-XIA-6","t":"Ancient Origins: the White Pyramid of Xi’an (believer source)","u":"https://www.ancient-origins.net/unexplained-phenomena/white-pyramid-xian-002470"},{"id":null,"t":"Zhao, Guangyu, Zhang, Weixing, Duan, Zheng, and others, including Svanberg, Sune, “Mercury as a Geophysical Tracer Gas: Emissions from the Emperor Qin Tomb in Xi’an Studied by Laser Radar”, Scientific Reports 10 (2020), article 10414 (open access, full text)","u":"https://www.nature.com/articles/s41598-020-67305-x"},{"id":null,"t":"Magli, Giulio, “Royal mausoleums of the Western Han and of the Song Chinese dynasties: a contextual approach”, Politecnico di Milano, arXiv 1612.05985 (2016; published in Archaeological Research in Asia, 2017) (full text)","u":"https://arxiv.org/abs/1612.05985"}],"qs":["The photo turned out to show a Han emperor's tomb. Why didn't that end the story?","Maoling is 46.5 m tall. How does a mound grow to 300 m in retelling?","Should real tombs nicknamed pyramids get the attention the legend gets?"],"gal":[{"src":"https://upload.wikimedia.org/wikipedia/commons/f/f6/%E6%BC%A2%E5%AD%9D%E6%88%90%E7%9A%87%E5%B8%9D%E9%99%B5%C2%B7%E5%BB%B6%E9%99%B5%C2%B7%E5%92%B8%E9%99%BD%C2%B7%EF%BC%88%E4%BF%AF%EF%BC%89.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail_unscaled","page":"https://commons.wikimedia.org/wiki/File:%E6%BC%A2%E5%AD%9D%E6%88%90%E7%9A%87%E5%B8%9D%E9%99%B5%C2%B7%E5%BB%B6%E9%99%B5%C2%B7%E5%92%B8%E9%99%BD%C2%B7%EF%BC%88%E4%BF%AF%EF%BC%89.jpg","title":"漢孝成皇帝陵·延陵·咸陽·（俯）.jpg","lic":"CC BY-SA 4.0","licurl":"https://creativecommons.org/licenses/by-sa/4.0","by":"Legolas1024","cap":"​飛機俯拍漢孝成皇帝延陵，陵在渭河北·咸陽。圖中，上為東南，下為西北。","alt":"Chinese pyramids (Xi'an/Xianyang mound tombs; 'White Pyramid' claim)"},{"src":"https://thumb.wikimedia.org/wikipedia/commons/thumb/5/5f/Anling_2.jpg/1280px-Anling_2.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail","page":"https://commons.wikimedia.org/wiki/File:Anling_2.jpg","title":"Anling 2.jpg","lic":"CC0","licurl":"http://creativecommons.org/publicdomain/zero/1.0/deed.en","by":"Brücke-Osteuropa","cap":"Anling - Grab der Kaiserin"},{"src":"https://upload.wikimedia.org/wikipedia/commons/c/ca/Emperor_Qin_Shihuang%27s_tomb_-_panoramio_%281%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail_unscaled","page":"https://commons.wikimedia.org/wiki/File:Emperor_Qin_Shihuang%27s_tomb_-_panoramio_(1).jpg","title":"Emperor Qin Shihuang's tomb - panoramio (1).jpg","lic":"CC BY-SA 3.0","licurl":"https://creativecommons.org/licenses/by-sa/3.0","by":"sylvannus","cap":"Emperor Qin Shihuang's tomb"},{"src":"https://thumb.wikimedia.org/wikipedia/commons/thumb/e/e1/Empress_Wang_burial_mound.jpg/1280px-Empress_Wang_burial_mound.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail","page":"https://commons.wikimedia.org/wiki/File:Empress_Wang_burial_mound.jpg","title":"Empress Wang burial mound.jpg","lic":"CC BY-SA 4.0","licurl":"https://creativecommons.org/licenses/by-sa/4.0","by":"Cotopaxi5897","cap":"Empress Wang burial mound"},{"src":"https://thumb.wikimedia.org/wikipedia/commons/thumb/c/c4/Han_Yang_Ling_01.JPG/1280px-Han_Yang_Ling_01.JPG?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail","page":"https://commons.wikimedia.org/wiki/File:Han_Yang_Ling_01.JPG","title":"Han Yang Ling 01.JPG","lic":"Public domain","licurl":"","by":"Brücke-Osteuropa","cap":"Mausoleum of Han Yang Ling near Xian"}],"sum":"The story is usually told from the air. A pilot is flying over the plains of central China when, out of the brown country below, a shape rises that should not be there: a pyramid, enormous and white, its sides catching the light, a jewel-like stone glinting at its tip. The aircraft carries him on, and he lands with a tale nobody can check, in a country few outsiders can visit.\n\nThis is the legend of the White Pyramid of Xi'an, and it has been circulating for the better part of a century. In its best-known form, retold by the popular site Ancient Origins, it rests on three witnesses. The first is a trader named Fred Meyer Schroder, said to have seen a field of pyramids in 1912 and to have put the largest at at least 300 metres high, with sides 500 metres long. The second is an American pilot, James Gaussman, who in 1945 described a gigantic white pyramid crowned with a gem-like capstone. The third is Colonel Maurice Sheahan of Trans World Airlines, whose sighting in 1947 was reported in the New York Times as about 1,000 feet high and 1,500 feet wide, roughly 300 by 460 metres. In the 1990s the German writer Hartwig Hausdorf brought the mounds back into fashion as one of the great mysteries of the ancient world.\n\nThree hundred metres is a hard number to picture. It is about twice the height of the Great Pyramid of Egypt. A structure like that would be the largest building raised by any ancient people, and it would sit, unrecorded, in one of the most thoroughly documented landscapes in Chinese history.\n\nBecause there really are pyramids near Xi'an. They are not hidden, and they were never lost. They are the burial mounds of the emperors of China's first great dynasties, built of rammed earth, packed down layer by layer, flat-topped and square or rectangular at the base. Seen from a low-flying aircraft across a flat plain, they look exactly like what the pilots said they saw: pyramids.\n\nThe first and greatest belongs to Qin Shi Huang, the ruler who unified China and governed it as emperor from 221 to 210 BC. Work on his tomb began in 246 BC at the northern foot of Mount Li, about 35 kilometres north-east of Xi'an. The historian Sima Qian put the workforce at 700,000 people. The protected area around it covers 56.25 square kilometres and holds more than 600 sites, including nearly 200 pits of life-size terracotta soldiers, horses, bronze chariots and weapons, the army that made the tomb world-famous when it was found in 1974. The mound itself, at the centre of all this, is believed never to have been opened.\n\nHow big is it? UNESCO gives its surviving height as 51.3 metres; a 2020 scientific study gives about 50 metres, on a base of roughly 380 by 330 metres. One estimate puts its original height at 76 metres, worn down over two thousand years. That is a substantial hill made by hand, about as tall as a fifteen-storey building, with a footprint larger than a dozen football pitches. It is not 300 metres.\n\nThe Han emperors who followed copied the idea. Their tombs now stand along the Wei River for some 40 kilometres, a line of earthen pyramids across the plain. The largest is Maoling, the tomb of Emperor Wu, about 40 kilometres north-west of Xi'an. Measured from satellite images by the Italian archaeoastronomer Giulio Magli, it is about 248 metres on a side; other accounts give about 220 metres square and 50 metres high.\n\nAnd here the legend begins to unravel. The photograph printed with the 1947 newspaper story was later identified as Maoling itself. The \"White Pyramid\" seen from the air was, in all likelihood, the tomb of a Han emperor, grown in the telling from 50 metres to 300. Neither UNESCO's account of the Qin necropolis nor Magli's satellite survey of the Han mounds reports any structure remotely like it. No source gives any mound a height near 300 metres. The tallest securely measured, Qin Shi Huang's, reaches about a sixth of the claimed figure.\n\nWhy did the story not die there? Part of the answer lies in the timing. In the 1940s central China was hard to reach, the country was torn by war, and a pilot's glimpse could not be checked against a map or a photograph from orbit. Part lies in how such stories travel. Each retelling sheds a caveat and adds a metre. And part, surely, lies in the wish to find something older and grander behind the familiar, a monument no historian had accounted for.\n\nThe mainstream case, then, is straightforward. The pyramids of Xi'an are a Chinese royal tradition, planned and built over a few centuries by known dynasties for known rulers. The Han annals even record that the emperors' relatives climbed the tombs every year to make offerings at the top. The mounds were always part of the landscape, visited, named and remembered.\n\nYet the real pyramids hold puzzles of their own, and some are subtler than any pilot's tale. In 2016 Magli noted that, as far as he knew, no one had ever systematically measured the Han mounds. So he did it from space. He found that their sides seem to follow the Han unit of length, the bu, about 1.386 metres: most tombs measure around 120 bu on a side, Maoling about 180. Their builders worked to a standard. He also found that the mounds fall into two groups. Some are aligned to true north within about one degree. Others are turned 8 to 14 degrees to the west. Magli suggested, as his own reading, that the second group may have been aimed at the star Polaris, which in Han times stood some way off the true pole. If he is right, the emperors of China were orienting their graves to the sky, and two schools of astronomers, or two ideas of heaven, were at work on the same plain.\n\nEven their original shapes are uncertain. The summits are badly eroded, and Magli warns that the first height and profile of each mound are hard to know. The biggest unknown of all lies inside Qin Shi Huang's mound. Radar and gravity surveys suggest an underground palace about 140 by 110 metres and 30 metres deep, with a central chamber about 80 by 50 metres. Sima Qian wrote that the chamber held rivers and seas of mercury laid out as a map of the empire, and a 2020 study measured mercury in the air above the mound at up to 27 nanograms per cubic metre, against 5 to 10 in the surrounding area. Archaeologists have chosen not to open it until they can protect what they find from air and decay.\n\nSo the hunt for a lost white pyramid ran for decades past a real pyramid field that still keeps its central secret. A sealed chamber, a plain of mounds aligned to two different norths, a standard unit of length applied across a dynasty: these are not legends. Who taught the first emperor's builders to raise a man-made mountain over a model of the world, and what are they still waiting to show us under fifty metres of earth?"},"img":null,"md":null,"hh":null,"hs":{},"lh":{"s":"img/h/ASI-XIA.webp","w":852,"h":1280,"o":"https://upload.wikimedia.org/wikipedia/commons/f/f6/%E6%BC%A2%E5%AD%9D%E6%88%90%E7%9A%87%E5%B8%9D%E9%99%B5%C2%B7%E5%BB%B6%E9%99%B5%C2%B7%E5%92%B8%E9%99%BD%C2%B7%EF%BC%88%E4%BF%AF%EF%BC%89.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail_unscaled"}}