My husband and I recently took a trip to Machu Picchu with our 3 year old son. We were a little nervous about how he would handle the trip. We didn't know if he would be able to handle all of the stairs or if it would hold his interest. We are happy to report that it was a wonderful trip and he handled it very well! He was amazed by the views of the mountains. He loved the ruins and walking around in them. We told him that they were once building with roofs and he would try to imagine what they used to look like. He wanted to look out every window and go through every door. He loved seeing the alpacas wandering around. We also saw a chinchilla, which was fun. By the end of the trip he was getting tired of the stairs, but he did very well and made it through the whole site.
Machu Picchu is absolutely beautiful! We were worried that it would be over-rated, but it was one of the most beautiful places I have ever seen!