Among the most significant monuments of the archaeological site is the Odeon, a Roman theater dating to the 1st century AD, featuring a northern curved wall and three rows of seating. The Great Inscription, a remarkable legal code dating to approximately 450 BC, was originally displayed on the northern wall of the Odeon. The Church of Saint Titus was a stone-built cruciform church of the 6th century AD, which was destroyed in AD 824. Another important monument is the Sanctuary of Isis (Iseion), dating from the 1st–2nd centuries AD, dedicated to the worship of Egyptian deities and incorporating an underground cistern. The Temple of Pythian Apollo, originally built in the 7th century BC during the Archaic period, underwent additions and modifications during the Hellenistic and Roman eras. The Praetorium, serving as the residence and administrative headquarters of the governor of Crete between the 2nd and 4th centuries AD, included both official and private sections. On the northeastern side of the complex stood a reservoir and a Nymphaeum, an open-air water structure adorned with statues, which was transformed into a vaulted construction during the 7th century AD. Finally, the Acropolis, located on the hill of Agios Ioannis, preserves fortifications dating from the 10th to the 6th century BC, the remains of an Archaic temple, and an Early Christian basilica, offering valuable evidence of the city's long and continuous history.