Today, the tower is in good condition, and it is open to the public as an archaeological museum.

Ligny Tower was built on a narrow strip of land on Trapani's western coast, to defend the city from attacks by the Barbary corsairs.

It was named after the Viceroy of Sicily, Claude Lamoral, 3rd Prince of Ligne, who had ordered its construction.

It has a square base with scarped walls, with four corner turrets which originally contained lanterns.

[3] In World War II, the tower was used by the Regia Marina and was armed with anti-aircraft guns.