Ras Al Khaimah is the northernmost emirate of the United Arab Emirates. It known for its Arabian Gulf beaches. In the capital city of the same name, the National Museum of Ras Al Khaimah occupies a centuries-old fort. The museum features regional history and archaeological exhibits. Nearby is the large, traditional Mohammed bin Salem Mosque. Northeast, the mountaintop Dhayah Fort dates from the 19th century. It covers an area of 2,486 km2 (960 sq mi) and has 64 km (40 mi) of beach coastline.