. . "Great Zimbabwe (Extinct city)" . . "Africa" . . "South Africa" . . "Zimbabwe" . . . . . . . . . . "Gates travels from South Africa to Zimbabwe, exploring a thousand-year-old city kept from public view for seventy years and heads for the medieval stone citadel of Great Zimbabwe." . . . . "Lost cities in the south" . . . . . . . . . . . . . .