One of the most impressive engineering achievements of the Incas is the city of Machu Picchu. Located high in the Andes Mountains of Peru, Machu Picchu was built in the 15th century as a royal estate and religious sanctuary. It is renowned for its exceptional stone masonry, agricultural terraces, and sophisticated water management systems. The city was constructed using precisely cut stones that fit together without mortar, with each stone intricately shaped to align with the surrounding stones. The drainage system in Machu Picchu is also highly advanced, with channels and terraces designed to prevent erosion and distribute water evenly throughout the city. These engineering marvels, combined with the city's breathtaking location, have earned Machu Picchu the recognition as one of the greatest architectural achievements of the Incan civilization.
