This is Fort Namutoni. And me, of course.

The Germans, who colonized Namibia in the latter half of the nineteenth century, built the fort as a police post. It was later used as an army post and to hold English prisoners during World War I.  Nowadays, it is known as Namutoni Rest Camp, one of the best spots to stay for tourists wishing to visit the Etosha National Park.

Ministry of Environment and Tourism : Namutoni - The only web site I could find with any information at all about this place. And believe me, I looked!