The history of Zanzibar would be incomplete without the cloves, nutmeg, cinnamon, pepper and many other spices which brought the Sultans of Oman and the beginnings of the infamous slave trade. They can be seen in the plantations just outside Zanzibar town, and a good tour includes opportunities to dazzle the senses with fresh spices. A detailed description is given about a variety of spices, and their uses in cooking and cosmetics. Visitors will be fascinated by the sheer number of spices produced and their incredible value for many ailments. This is also the cheapest place to purchase spices and spice oils.