Owl's House, Nieu Bethseda, shows the work of "Miss Helen" (Helen Elizabeth Martins, 1897-1976), considered to be South Africa's foremost Outsider Artist.
Outsider Art was described by Jean Dubuffet, who coined the term, as "fantastic, raw, visionary art, created by individuals often maladjusted, with no art training, who work outside the mainstream of the art world".