The guided tour of Giovinazzo starts from Piazza Vittorio Emanuele II, a large square with a monumental fountain of tritons in the center, built by Tommaso Piscitelli in 1933.  Giovinazzo was a small fortified center of the Romans, who called it Natolium, maybe built on the ruins of the PeuceteNetium, which was destroyed during the Punic Wars. After the Byzantine period, it became a countship. It later became a flourishing commercial center, that had trading connections with Venice. Through the narrow streets of the historic center, you will visit the Arch of Trajan, one of the ancient gates of the village, formed by two pointed arches supported by four milestones of the Via Traiana and the Aragonese Tower, a defence tool behind the pretty little port. The tour continues with the visit of the Ducal Palace up to the XII century Concattedrale di Santa Maria Assunta.   The co-cathedral, dedicated to Santa Maria Assunta (Mary's Assumption), was built in the Norman period 1150-1180, in characteristic Apulian Romanesque style.  It features Eastern and Western elements, and was consecrated in 1283 under bishop Giovanni II.  Under Bishop Paolo De Mercurio (1731-1752) it had a thorough Baroque remodeling.

The tour starts from Baresana Gate, also known as Marina Gate, as it shows the way to the sea. Walking further, you will encounter the Angevin Tower, watchtower and defense, at 24 meters high. Recently, it was restored and now you can see the moat and rampart, the first outpost of defense. The tour continues in the town center to Bitonto Cathedral, one of the most important of the Puglia region for its Romanesque style and dedicated to St. Valentine. The Bitonto Cathedral is the one of the finest examples of an early Christian cathedral in Italy. This beautiful Romanesque cathedral dates from the 12th-century and is a refreshing change from the 'over the top' Baroque churches which can be found in great numbers throughout Italy. The simple lines result in an uncluttered space which is quite overwhelming. The crypt is not to be missed. An extensive architectural project has uncovered previous buildings which reveals the development of Christianity during the different eras since its establishment in the 12th-century. The tour ends by visiting Sylos Calò Palace, built in the late Renaissance style.