Great Enclosure view (IMAGE)
Caption
The ruins of the ancient city of Great Zimbabwe. The vegetation around the ruins hides a lot of depressions, so-called Dhaka pits, which until now have been thought to have originated from the excavation of clay. With remote sensing methods and excavations, the researchers have found that the pits must also have been used to store and manage water for the city
Credit
Federica Sulas, Cambridge University
Usage Restrictions
Credit must be given to the creator. Only noncommercial uses of the work are permitted.
License
CC BY-NC