This is one of the oldest and popular forts in Oman, having been built by Imam Sultan Bin Saif Al Y'aribi during the 17th century over the ruins of the 12th century. It stands out from the rest due to its unique shape: round and thus also known as the Round Fort. The diameter of the fort is around 43 metres and rises up to 24 metres.
There are seven interior wells, seven staircases, many trapdoors, and false doors. The walk around the castle is quite interesting geometrically and photographs quite beautifully. The castle has many exhibits that give an idea as to show the traditional living style in Oman.
There are viewpoints in the castle from which you can see the Hajar Mountains and the stretch of tropical trees. The last level of the fort has canons spread around the area. It is located about one and a half hours away from Muscat, the capital city, and even closer to the Anantara Al Jabal AL Akhdar resort. The fort is usually open on from Saturdays to Thursdays and has a small entrance fee.