Located in the north-west of Botswana, Tsodilo Hills is a series of hills called Male Hill, Female Hill, and Child Hill. This rock formation is one of the highest points of Botswana and guards the north part of the Kalahari desert. These hills are well known for rock art and have been recognized by UNESCO as a World Heritage Site. There is a campsite between the two highest hills containing a museum of rock art of early human civilization.