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Mola Castle (or Tower) in Formia: the Angevin fortress built over Roman baths
The massive tower of Castello di Mola dominates the old town of Formia. Yet its most fascinating secret lies not at the top, but beneath its very foundations. This medieval fortress stands directly on the remains of ancient Roman baths, still visible today through a glass floor.
A fortress overlooking the sea
Built in 1289 at the behest of Charles II of Anjou, the castle served as a military outpost in the defence of Gaeta — a cylindrical tower rising up to 27 metres in height, surrounded by imposing walls with two gates, one facing inland and the other facing the sea, for supplies. Inside, the castle was a small fortified city. On the ground floor, soldiers lived among stables and kitchens, while the upper floor served as the residence of the Castellan and his family. There was even a chapel dedicated to Archangel St Michael.
Walking on history
The true magic of the castle, however, is revealed by looking down. A modern glass floor allows visitors to walk on top of history, gazing down at the remains of the Calidarium and Frigidarium of the Roman baths upon which the castle was built. After centuries of control by the Caetani family, the castle was abandoned, then damaged during the war, and eventually restored, enhanced further by a magnificent Renaissance portal brought over from Gaeta.
The castle has been restored and donated to the City of Formia. A visit is a unique experience that brings together the Middle Ages and Roman antiquity.
