The term BUILDER OF MACHU PICCHU is an INCA, a South American indigenous people who lived in the Andes Mountains. The Incas were known for their advanced engineering and architecture, and the most famous example of this is Machu Picchu, a 15th-century INCA citadel located in Peru. The Incas built Machu Picchu as an estate for the INCA emperor Pachacuti, and it is now considered one of the most important archaeological sites in the world.