The sun island is a vey good place to visit in Bolivia, It is located in Lake Titicaca and has a beautiful landscape.
One of the most recomeded places if you are in Cusco, there are many excursions that take you to Machu Picchu, you spend one night in Aguas Calientes, which is a very nice town, and the next day you go to visit this historical place that is one of the seven Wonders of the World.
City located in the north of Chile, very nice to visit in summer. It have very beautiful beaches and landscapes.