One of my favorite experiences was Saqsaywaman. I've seen these megalithic structures on television shows and documentaries, such as Ancient Aliens, but nothing compares to seeing them up close. All I kept thinking was, "How? Why? Who?" So many questions filled my mind, and I felt like a little kid again. Amazed and bewildered. Almost at a loss for words. It puts life into perspective and made me want to know more. I loved every minute of it. If you get a chance, I recommend going to Cusco, and booking a tour with Norel Tours. He will take care of all of your touring needs in Cusco, including going to Saqsaywaman and other nearby archeological sites.