Stock photography, photos: Stonetown Manhole Cover - Zanzibar Stock photos of Zanzibar's Old Stonetown is a fascinating place filled with winding streets, historic buildings, overhanging balconies and huge, intricately carved wooden doors. The Stone Town Conservation and Development Authority is charged with preserving historical architecture. Declared a UNESCO World Heritage Site, Zanzibar was also once a haven for slave traders. Tanzania ˆ East Africa. Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: Africa, East Africa, Tanzania, Zanzibar, island, manhole, manhole cover, conservancy, historical society, Stonetown, Stone Town, World Heritage Site, UNESCO