If you have at least 8 days or more, it is fairly simple to include tours to Machu Picchu and Lake Titicaca. If you have 10 days you can add Colca Canyon (2 x deep as the Grand Canyon) or other destinations to the Amazon jungle or to remote ruins in northern Peru.

There is much more to see than Machu Picchu but if you have at least 5-7 days, you will have time to explore the sites in Cusco and Sacred Valley of the Inca on your way to Machu Picchu.