Buildings and structures demolished in the 12th century

thumb|Mount Soffeh, Isfahan Dizkuh () or Shahdiz (), was a fortress near Isfahan, Iran, notably held by the Nizari Ismailis. It was captured and destroyed in Seljuk sultan Muhammad Tapar's anti-Nizari campaign. Its conspicuous, picturesque ruins lie about 8km south of Isfahan on a subpeak of Mount Soffeh.

thumb|right|The castle ruins seen from above Chastelet was a castle located beside Jacob's Ford, a ford of the upper Jordan River in Israel. The castle was built during the Crusades by the Knights Templar and the forces of the Kingdom of Jerusalem but was destroyed by the army of Saladin in 1179.

thumb|The Sicilian castle of Matagrifone (Rocca Guelfonia) Mategriffon or Matagrifone or Mathegriffon or Rocca Guelfonia was a medieval castle in Messina, Sicily, located in what is today Viale Principe Umberto. Its strategic position upon a rocky hill close to the historic city centre gave a commanding view of the harbour and Strait of Messina. In the 19th century it was converted into a prison. Prior to its destruction in the 1908 earthquake it comprised a square dungeon with ramparts and reinforced by polygonal towers. Only an octagonal tower remains standing and is incorporated into the 20