Rome is nicknamed “The Eternal City” and nowadays it could also be referring to the lines you’ll wait in. The city (along with Naples) is better organized than ever for the huge crowds that descend on it each year — but only for those who equip themselves with good information and use it. These tips may be wonky, but for smart travelers in 2020, they will translate into many precious hours saved — and lots of sweat avoided.

Rome’s big sights continue to tinker with ticketing procedures and crowd-control measures. For instance, travelers who want to tour the Colosseum must book an entry time when buying their ticket (which also covers the nearby Roman Forum and Palatine Hill). Reservations can sell out weeks ahead, so it’s essential to buy your ticket online, well in advance of your visit (www.coopculture.it).