Zanzibar is a Tanzanian archipelago off the coast of East Africa. On its main island, Unguja, familiarly called Zanzibar. Stone Town, a historic trade center with Swahili and Islamic influences. Its winding lanes present minarets, carved doorways and 19th-century landmarks such as the House of Wonders, a former sultan’s palace. The northern villages Nungwi and Kendwa have wide beaches lined with hotels.