The capital of Zanzibar, located on the island of Unguja, is Zanzibar City. Its historic centre, known as Stone Town, is a World Heritage Site and is claimed to be the only functioning ancient town in East Africa.
Zanzibar's main industries are spices, raffia, and tourism. In particular, the islands produce cloves, nutmeg, cinnamon, and black pepper. For this reason, the islands, together with Tanzania's Mafia Island, are sometimes called the Spice Islands (a term also associated with the Maluku Islands in Indonesia). Zanzibar is the home of the endemic Zanzibar Red Colobus Monkey, the Zanzibar Servaline Genet, and the (possibly extinct) Zanzibar Leopard.