 The rivers are flanked by wetlands, which act as a water store and flood protection for the city, although these are under threat from agriculture and development.Kigali's CBD, sometimes known in English by the Kinyarwanda term "mu mujyi" ("in town"), is on Nyarugenge Hill and was the site of the original city founded by Richard Kandt in 1907.The house that Kandt lived in is now the Kandt House Museum of Natural History.