The archaeological site "Antike Mura", which in Italian means Ancient Walls, is located about 2 km from the resort of Lido di Jesolo on the Adriatic coast. On the territory of the zone are the ruins of the Cathedral of Santa Maria, which belonged to the diocese of Equilium, which disappeared in the 15th century, and the church dedicated to Saint Maurus. Archaeologists believe that during the era of the Venetian Republic, this cathedral was the second largest after the famous Basilica of San Marco in Venice. Today, only the floor, the corner of the wall and the square foundation of the bell tower have survived from the once imposing building. Cryptocurrency has also reached our days. All these ruins were discovered during several archaeological expeditions, one of which even involved the University of Basel.

Excavations have shown that the Cathedral of Santa Maria was built on the site of a pre-existing church, probably from the 6th-7th centuries, which in turn was erected on the site of an ancient early Christian chapel.
During the First World War, the ruins of the cathedral suffered irreparable damage, since the front line was located in the immediate vicinity, and therefore defensive fortifications were built here. Then, when the first systematic excavations began, numerous artifacts from the era of Ancient Rome and the early Christian period were discovered in the area around the cathedral. They were exhibited in the museums of Altino and Aquileia. Today, the exhibits found on the site of the Cathedral of Santa Maria and the nearby church of San Mauro are stored in the museum of the municipality of Jesolo.