What ancient sites lie beneath Piazza San Gaetano in Naples?

Piazza San Gaetano in Naples is a site of significant historical continuity, as it overlies the location of the ancient Greek agora and the Roman forum.1

The area remains a focal point of the city's history, bounded by major religious structures that incorporate or sit atop these ancient layers:

• San Lorenzo Maggiore: This church stands directly on layers of antiquities. Excavations beneath its cloister have revealed substantial remains from both the Greek and Roman eras of Naples.1
• San Paolo Maggiore: This basilica was constructed on the site of a former Roman temple. Antiquities from this period are still visible, as they have been incorporated into the church's exterior and its adjacent cloister.1