Machu Picchu, the renowned Inca site nestled high in the Andes Mountains, served as a royal estate for Emperor Pachacuti and held significant religious importance. This architectural marvel, known for its precise stonework and strategic location, was not only a luxurious retreat but also a center for important ceremonies dedicated to the Sun god, Inti. Machu Picchu’s alignment with astronomical events and its secluded position reflect the Inca’s advanced understanding of engineering, spirituality, and the natural world.