Archaeologists from the University of the Witwatersrand have rediscovered the ancient city of Kweneng on the Suikerbosrand hills just outside Johannesburg, Gauteng using laser technology.
10,000 people from Tswana descent is believed to have lived in Kweneng. Some of the oldest stone wall ruins that have been discovered are estimated to be around 500 years old dating back to the 15th or 16th century.
Archaeologists have been able to reconstruct what Kweneng city would have looked like when people lived here 200 years ago. This was done by means of LiDAR technology that uses light detection and ranging to send out laser pulses.
Watch this BBC video story on Kweneng city produced by Glenn Middleton, Nomsa Maseko and Vauldi Carelse.