Yapahuwa, the entry, Sri Lanka.

The entrance in the wall of the 12th Century rock fortress.

A moat outside the wall now empty of water

Please click on the following web-links :-

http://www.lonelyplanet.com/sri-lanka/the-ancient-cities/sights/other/yapahuwa

http://www.archaeology.gov.lk/web/index.php?option=com_content&view=article&id=70&Itemid=99&lang=en