"The Queen of Roads". This was a main route for travelers to set out from Ancient Rome. A couple of miles out you had a place where you could turn back and see the great city for the last time. At this spot a place of worship was established.
Rediculus was one of the lares, the protector gods of Rome. When Hannibal's army approached in 211 BC Rediculus appeared in an apparition, or perhaps in a storm of hail, admonishing the Carthaginian to turn back. The word redire in Latin means to turn back and is likely the origin of the god's name. Later interpretations that Hannibal was made to look ridiculous don't sound likely.
The Temple of Rediculus was built at this spot, and a larger campus, or field of Rediculus was nearby. There do not seem to be visible remains.
The notion of this being the spot where you either went forward or back was established, and it was here that travelers would stop to give an offering to their safe return from far journeys. One wonders how many - with real or perceived omens - aborted their journey and turned around?
Fast forward a few centuries. According to the apocryphal Acts of Peter this is the spot where the Apostle, and first Pope, encountered a vision of Christ. Peter was fleeing the city ahead of persecution but came to a halt when he met Christ. Asking Him: "Master, where are you going?" Peter was told "I am going to Rome to be crucified again."
Taking the hint that it was his, Peter's, job to return he did so. And met his martyrdom.
Peter's words in Latin "Domine Quo Vadis?" are linked to the church that was later built on the site. Miracles being what they were back then, a stone slab depicting the actual footprints of Jesus were long kept there. What you see now in situ is a replica.
So, what do modern travelers find at the Field of Rediculus and at the Church of Dominie Quo Vadis?
A nice little church. That is the Appian Way running right in front of it.
Jesus looks to be about a size 10.
We were actually having a rather tough day when I took these photos. It was hot. There were large crowds on the Road as it was a local festival. In places the original Roman paving stones were quite jarring as we rode our bikes over them. But we did not turn back at Quo Vadis, we soldiered on for as long as the time on our bike hire allowed. More pictures of the day, of course, in due course.