The Basilica Risen from the Tide's Embrace

Originally, Ravenna, named after the Roman fleet that once resided here, was adorned with marble because of its new basilica. Dedicated to Saint Apollinaris, the city's first bishop and Classe's, this basilica housed his remains. Fast forward to the 15th century, Sigismondo Malatesta plundered it of its marble coverings. Surprisingly, it still stands, towering over its neighbor - the Basilica of San Vitale. The struggle between Christianity and Arianism is depicted in its mosaics and frescoes, subtly reminding the city of its past as a royal tomb before Christianity claimed the heart of the city.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons