Kaole Ruins in Bagamoyo,Tanzania. This photo has been taken by Mr.CHen Hualin.
<a href="//commons.wikimedia.org/wiki/User:Harveychl" title="User:Harveychl">Chen Hualin</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>