Romans are often tourists in their own city, which is so thick with spectacular cultural sights that it would take a lifetime to cover them all. Locals know that timing is everything, however, and plan accordingly to visit the city’s art collections, ancient sites, and baroque palaces when they’re cool and quiet. Purchase tickets in advance and hit the A-list attractions in the early morning or late afternoon; many top spots also have special evening hours during the summer.
Insider tip: Keep in mind that state-owned museums and archaeological ruins are free on the first Sunday of each month, so avoid visiting on that crowded and chaotic day.