When I was in the Navy in the early 70s, I was on a ship home ported in Naples. We were out 75% of the time, so were in port one week per month and had plenty of time to explore. I found Herculaneum more interesting than Pompeii. The former was populated by more wealthy people, often visiting from Rome with summer villas there. Pompeii was more of an agricultural center. I remember seeing a cross on a wall in Herculaneum, with a small altar underneath, with the top surface slanted and under that, holes in the front of the altar that could hold scrolls. Vesuvius blew its stack about 15 or 16 years after St. Paul went through that area, on his fourth missionary visit.
Oops. At the end of the previous post, make that “journey” and not “visit.” He didn’t go there four times.