The culture famous for its ancient ruins located in the Andes is the Inca civilization. Originating in the early 15th century, the Incas established a vast empire in western South America, spanning modern-day Peru, Ecuador, and parts of Chile and Bolivia. Their incredible architectural accomplishments include Machu Picchu, an iconic site known for its sophisticated dry-stone construction, agricultural terraces, and breathtaking mountain scenery. The Incas are also renowned for their advancements in agriculture, engineering, and governance, as well as the extensive road systems they established across rugged terrains. Their legacy continues to influence Andean culture today.