5. Machu Pichu, Peru
Over 500,000 tourists visit Machu Pichu annually leading towards a potential crisis that could seriously affect the local wildlife and environment. The park’s captivating history and ancient archaeological site is the main attraction as well as its spectacular landscape. It has become one of the most visited places in all of Peru. A train service runs within the park to help visitors move around, but simply wandering around the park and drinking in the ancient culture is the best way to see everything.