The castle of Venus is a 12th-century Norman castle, which stands on an isolated cliff in the south-eastern corner of the summit of Mount Erice, in the province of Trapani, and is built on the ruins of an Elymian-Phoenician-Roman temple.
For the medieval reconstruction of the fortress, some fragments of the ancient Phoenician-Roman temple were also used. The facade of the castle, facing west, is dominated by Ghibelline merlons, and the wall of the complex follows the contour of the cliff with recesses and protrusions, so you will seem to be suspended in the void. You can see the mouth of a secret tunnel that led out of the castle.