The former Sultan's palace at the highest point of Tangier's kasbah, now a museum of Moroccan art and history, with gardens and terraces looking out over the Strait of Gibraltar toward Spain. On a clear day the Spanish coastline is visible from the viewpoints.
The kasbah's streets are narrow and largely pedestrian, so park near the entrance to the old town and walk up.
Photo: Travel4Brews / Wikimedia Commons (CC BY 2.0)