Longyou Caves
The Longyou Caves, also called the Xiaonanhai Stone Chambers, are a group of 24 artificial sandstone caverns located at Fenghuang Hill, near the village of Shiyan Beicun on the Qu River in Longyou County, Quzhou City, Zhejiang Province, China. It is unknown when the caves were created; they are mentioned in a 17th century poem by the Yu Xun, and clay from pots dated to between 206BC and 23 AD were found in silt within the caves.
Discovery
In June 1992, four farmers in Longyou found the caves when they drained the water of five small ponds in their village. The ponds turned out to be five large manmade caverns. Further investigation revealed 19 more caverns nearby.[citation needed] They have been determined to be more than 2000 years old and their construction is not recorded in any historical documents.
About 200 km (120 mi) to the northwest, the Huashan Grottoes at the riverbanks of the Xin'an River somewhat resemble the Longyou Caves but are likely to have been built more than 1,500 years later during the late Ming Dynasty (1551–1667 AD).
Megalithic Builders is an index of ancient sites from around the world that contain stone megaliths or interlocking stones. Genus Dental Sacramento