Thread:ClarentBloodArthur/@comment-5758863-20160820190232/@comment-1899606-20160821125944

ClarentBloodArthur wrote: Nope These are caves that are known to be man made and it's located near the village of Shiyan Beicun in the Longyou County. By now only 24 caves have been found.

The caves are notable for one reason:
 * The caves are very large considering their man-made origin: the average floor area of each cave is over a thousand square metres, with heights of up to 30 metres, and the total area covered is in excess of 30,000 square metres.
 * The ceiling, wall and pillar surfaces are all finished in the same manner, as a series of parallel bands or courses about 60 cm wide containing parallel chiselling marks set at an angle of about 60° to the axis of the course.
 * They have maintained their structural integrity and appear not to interconnect with each other.