e City in the Sky—Machu Picchu

Machu Picchu, in the Quechua language used by the Inca Empire at the time, means 'Old Peak', so Machu Picchu is actually not the name of the city, but the name of the mountain. The name of the city is unknown; there is a taller peak nearby called Huayna Picchu. The first mystery of Machu Picchu is its builders and purpose of construction. There is not a single word or mural inside the entire city of Machu Picchu, and since the Inca civilization did not have a written language, there is absolutely no information about this city. So, if there are no records about this city, how do we know it was built by the Inca Empire? It is because the city was within the domain of the Inca Empire at the time, and its architectural style is consistent with other buildings of the empire, leading to the current belief that Machu Picchu was built by the Inca Empire in the 15th centur