Inca road system
The Inca Trail to Machu Picchu is actually three routes, which all meet up near Inti-Pata, the 'Sun Gate' and entrance to Machu Picchu. The three trails are known as the Mollepata, Classic and One Day trails, with Mollepata being the longest of the three. Passing through the Andes mountain range and sections of the Amazon rainforest, the Trail passes several well-preserved Inca ruins and settlements before ending at the Sun Gate on Machu Picchu mountain. The two longer routes require an ascent to beyond 12,000 ft (3,660 m) above sea level, which can result in altitude sickness.