Many exciting things! The Main Square is a great place to relax, take pictures, socialize with locals and other tourists, enjoy the natural energy and the views. There is the typical market where you’ll find everything Andean, like clothing, souvenirs, bags and so on, besides you could chat with the vendors, who are mostly people who still preserve a lot of the old Inca traditions. The Chavez Ballon museum will be quite an interesting introduction to the citadel’s history (we suggest you visit on day 1). There’s the Butterfly Research Institute, with guided tours in a simulated natural habitat. Many spas and Inca massage shops with a variety of beauty and relaxing treatments. Last but not least, the renowned thermal baths for an Inca-style treat.