Mostly occupied as a residential neighborhood, this citadel sits on a hill at the mouth of the Bou Regreg river. Consisting of monumental gates, an ornately decorated mosque, a National Jewelry museum, and a formal garden, Kasbah of the Udayas or just Oudayas, is is popular tourist destination. The residential area itself is known for its distinct blue and white walls. Whether you’re there as a tourist or visiting a friend, Oudayas is sure to blow you away.