We highly recommend visiting Stone Town Zanzibar, especially if you are interested in the history of the area. Taking a guide around Stone Town will reveal things that you would without doubt miss on your own.
You should definitely visit old slave market, Darajani market place, the House of Wonders, the Old Fort and the Sultan’s Palace. At night the Forodhani Gardens come alive with barbecues and a party atmosphere. It is one of the best street food markets in East Africa.
Zanzibar's Stone Town is a fascinating living monument to the history of East Africa, and an extraordinary place to explore. Once the historic centre of the ivory, gold and slave trade, the ancient maze of narrow streets that make up Zanzibar's 'Old Town' are now a full of markets, shops and craft centres.
The town was named for the coral stone buildings that were built there largely during the 19th century, on the site of a very old fishing village.