To the left of the lighthouse, you see the Duomo (built in 1150, Romanesque-Apulian style). Between the twin towers of the Duomo the spire of the Church of Saint Anthony is peeking through. To the right of the lighthouse the false front-style facade of the Cathedral of Saint Mary Ascension (completed 1744) is visible. And, to the far right, stands the bell tower of the Church of St. Stephen (13th century).
These are not all of the churches present in Molfetta's tiny old town, but a fair share!