Lima's historic centerConsistently the top recommendation for visitors, and worth allowing a half day rather than squeezing it between other stops.
Local culture beyond the checklistthe Larco Museum and day trips to Paracas and the Ballestas Islands are where Lima feels least like a tourist itinerary and most like the actual city.
A well-known second stop: BarrancoRounds out a first visit nicely alongside the bigger-name sights.
Easy onward travelLima's transport connections make it simple to extend the trip into the rest of Peru if you have the time.