Tabuk Castle is located in the heart of Tabuk city, near the historic Ain al-Sukkar spring and the Levantine pilgrimage route. It was first built in 976 AH and was fully restored and renovated in 1259 AH. The castle is associated with the site where Prophet Muhammad (peace be upon him) stayed during the Battle of Tabuk. It consists of two floors arranged around a square courtyard and includes watchtowers, guard rooms, a small mosque, and a water well. In modern times, it has been converted into an archaeological museum showcasing the region's history.