Chongqing's Dazu and Ziyang city in Sichuan are known for their stone carvings — 150,000 in all — among which the Anyue Grottoes in Ziyang's Anyue county have been included in the provisional list of ...

and in one case by a man hand-digging an irrigation canal. They are the Clovis caches, groupings of exquisitely carved spear points and/or other flaked stone artifacts crafted thousands of years ago.

Carved stone balls are mysterious and uniquely Scottish objects. They are thought to date from the late Neolithic period, more than 4000 years ago. We do not know what they were for or how they ...