3. Hike the Inca Trail to Machu Picchu – Peru
One of the most obvious entries on this list, you could take the train to Machu Picchu but hiking the Inca Trail is a must for those who are physically able.
Taking at least four days, it’s a hard graft, but it makes Machu Picchu itself so much more extraordinary. Plus, it makes it obvious as to how the Spanish didn’t find it!