The castle Untermontani belonged in the 14th century to the counts of Annenberg. It still has interesting details like Zugbrückenanlage, the gate and a smallkennel. The castle Untermontani lost over the years its importance and was abandoned to decay. At the beginning of the 19th century collapsed parts of the western curtain wall and the Palas, because of the flowing river Plima along here had undermined the embankment. In 1945, parts of the keep collapsed, so that the castle today completely ruinousist. Visits only from outside.
Along the state road until Coldrano and at the roundabout in the direction Val Martello to the village Morter.