I believe that Henry Miller says it best: "One's destination is never a place, but a new way of seeing things", Travel allows us to see the world, and ourselves, from a new perspective and this is also what I love most about traveling.
Take some time to explore Cusco! As one of the most unique cities in South America with rich history and culture, it's truly worth the time to stroll the streets, visit the markets or hike in the surrounding countryside
Don't skip Lima. The only capital city in all of South America offers unique ocean views and incredible food.
Get off the beaten path and carve time to go to Huaraz. The Cordillera Blanca is by far one of the most impressive sites in the world. You will not regret spending some extra time in this area.
Give yourself some free time! You can fill the day with sightseeing if you would like, or opt to take some time to explore on your own - at your own pace. Peru is so full of great photo ops, so I especially recommend this if you want to bring home more photos for your collection.