When I visited Peru, I booked a tour that included visits to both Machu Picchu and Lake Titicaca. Instead of flying from Cusco (the jumping off point to visit Machu Picchu) to Puno (the jumping off point to visit Lake Titicaca) I opted for the Inka Express bus to take me on the journey, which included stops at a number of historic, archaeological, and religious sites.
Stops included Andahuaylillas, Raqchi, Sicuani, La Raya, and Pukara. While none of these will get mentioned on any list I have of most spectacular sites to see in Latin America, I was glad that I chose the bus trip and got to visit these areas instead of sleeping through a plane ride. There were some great views of the mountains behind ruins and one stop even included a mummified human body (check out the video). Plus, we got to make friends with some llama and alpaca and the lunch that was included was also fairly tasty as far as tour group buffets go.
Check out the video to see the sites and the mummified body!