Nizwa is an ancient city in the Ad Dakhiliyah region of northern Oman. It sits on a plain characterized by seasonal rivers and palm plantations. It's known for Nizwa Fort, a castle with a huge cylindrical tower built in the 17th century to defend the city's position on a major trade route. The adjoining marketplace, Nizwa Souk, is lined with handicrafts stalls and silversmiths working in small shops.
