The Castle of Santa Àgueda is situated over an elongated plateau. The castle is accessed by an ancient Roman road. Next to the castle there was also, until recently, a chapel dedicated to Saint Agatha.
The castle was built over an ancient Roman castra by the Arabs, when Menorca was part of the Caliphate of Cordoba. The exact date of its construction is not known, but it was prior to 1232. In 1287, it became the last standpoint of resistance by the Arab inhabitants when the island was invaded by King Alfonso III of Aragon. The castle was later destroyed by Alfonso's grand-nephew King Peter IV of Aragon around 1343.
References:The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.