Final answer:
Pachacuti, the ninth ruler of the Inca Empire, ordered the construction of Machu Picchu, an ancient city in the Andes Mountains of Peru.
Step-by-step explanation:
Pachacuti, the ninth ruler of the Inca Empire, ordered the construction of Machu Picchu. This ancient city is located in the Andes Mountains of Peru and is considered one of the greatest architectural achievements of the Inca civilization. Machu Picchu is known for its sophisticated stone structures, terraces, and agricultural systems that display the ingenuity and engineering skills of the Incas.
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