Inside , left of the Baroque nave , go down to Naples ' earliest known Christian sanctuary , the fourth-century Ba ? ­ si ? ­ li ? ­ ca of Santa Restituta , in which the original Roman columns survived the 1688 earthquake .
The fourth-century Basi ­ li ­ ca of Santa Restituta survived the 1688 earthquake and the Roman columns remain so this popular Christian sanctuary is located inside the left of the Baroque nave going down to Naples and has hundreds of visitors every year .