The ruins of Great Zimbabwe, Zimbabwe

Parallel walls of Great Enclosure, Great Zimbabwe, UNESCO World Heritage Site, Zimbabwe, Africa

Walls of Great Enclosure, Great Zimbabwe, UNESCO World Heritage Site, Zimbabwe, Africa

Temple 100 in the Great Enclosure at Musawwarat es Sufra, Sudan, Africa

Great Indian Rhino, baby sleeping by its mother, captive Rhinozeros unicornis

Two Bonobos or Pygmy Chimpanzees (Pan paniscus), delousing each other in an enclosure

Portrait, Eurasian Lynx, or Northern Lynx (Lynx lynx) in an enclosure, Tierpark Weilburg Zoo, Hesse, Germany, Europe

Wild cat (Felis sylvestris), enclosure zone of the Nationalpark Bayerischer Wald Bavarian Forest National Park, Bavaria, Germany, Europe

Wild cat (Felis sylvestris), enclosure zone of the Nationalpark Bayerischer Wald Bavarian Forest National Park, Bavaria, Germany, Europe

Wild cat (Felis sylvestris), enclosure zone of the Nationalpark Bayerischer Wald Bavarian Forest National Park, Bavaria, Germany, Europe

Eurasian Lynx or Northern Lynx (Lynx lynx) crouched on a rock, enclosure area, Bavarian Forest National Park, Bavaria, Germany, Europe

Elephant statue in the Great Enclosure of Musawwarat es-Sufra; Northern State, Sudan

Inscriptions of the Prussian archaeological expedition in the Great Enclosure of Musawwarat es-Sufra; Northern State, Sudan

Great Enclosure of Musawwarat es-Sufra; Northern State, Sudan