The Church of Saint Augustine is a medieval Gothic church in Trapani's old centre, notable for its rose window and layered use as a religious and exhibition space. It now houses the Polo Espositivo Sant'Agostino, so the interior is often encountered through temporary cultural displays.
It is a short stop, but a good one while walking between Trapani Cathedral, the old palaces and the harbour streets. The facade is the main draw if no exhibition is running.