One of the most popular walking trails in the world, the Inca Trail to Machu Picchu is well known all over the world with travelers who hope to see the famous sight one day. It gives hikers a unique approach to the mountain, and can help them avoid the tourist crowds that approach Machu Picchu each day via bus and train. But the actual trip down what is known as the Inca Trail can be more complicated than visitors realize. There is a lot to consider before strapping on a backpack and proceeding down the trail, including which route to…