Machu Picchu History: From Inca Royal Estate to World Wonder

Who Built Machu Picchu?

Machu Picchu was built by the Incas, under the emperor Pachacuti Inca Yupanqui, who ruled from about 1438 and turned Cusco's kingdom into an empire. Thousands of laborers working under the Inca mit'a system of rotating labor service cut and fitted the stone, built the terraces and engineered drainage on the steep ridge.

Skilled stonemasons shaped granite quarried on site. The finest ashlar walls, with no mortar, mark royal and religious buildings, while rougher fieldstone was used for homes and storage. Surprising details of this engineering are in our list of Machu Picchu facts.

When Was Machu Picchu Built?

Machu Picchu was built in the mid-15th century. Historians long dated construction to about 1450, based on Spanish colonial records of Inca reigns. Radiocarbon dating of human remains, published in 2021, showed people were living there by about 1420, suggesting the site is roughly two decades older than once thought.

Radiocarbon dates come from Burger and colleagues (2021); earlier dates come from colonial chronicles and are approximate.

Why Did the Incas Build Machu Picchu?

The Incas most likely built Machu Picchu as a country palace and religious sanctuary for Pachacuti and his royal lineage, similar to other royal estates around the Sacred Valley. It combined comfortable residences, sacred temples aligned with the sun and mountains, and farming terraces, in a setting that reinforced the emperor's divine power.

Earlier theories called it a fortress, a convent for chosen women or the last Inca refuge, but archaeological evidence and a 1568 land document studied by historians support the royal estate explanation.

Who Lived at Machu Picchu?

Machu Picchu was home to the royal family and nobles during visits, plus a permanent community of perhaps 750 people at most, many of them servants and craftspeople. DNA studies published in 2023 found that residents came from across the Inca empire and beyond, rather than from one local group.

Burials studied in the area point to a diverse workforce of retainers, called yanacona, brought from distant regions to serve the estate.

Why Was Machu Picchu Abandoned?

Machu Picchu was abandoned in the 1500s, most likely because the Inca royal system that supported it collapsed after the Spanish conquest began in 1532. Civil war between Inca princes, epidemics such as smallpox, and the loss of the labor and supplies that kept a royal estate running all likely played a part.

There is no evidence the Spanish attacked or looted the site. Without its royal owners, Machu Picchu slowly emptied, and cloud forest grew over the buildings. The Inca road network that served it survives today as the Inca Trail; see the Inca Trail permits guide.

Did the Spanish Find Machu Picchu?

The Spanish never found Machu Picchu, which is a key reason it survived intact. Colonial records mention a place called Picchu, but conquerors did not reach the remote ridge to loot or destroy it. Many other Inca temples, such as Cusco's Coricancha, were dismantled or built over by Spanish churches.

Visitors can still compare the two in one trip: Coricancha in Cusco and Machu Picchu itself. A guided Machu Picchu day trip from Cusco includes a licensed guide who explains this history on site.

How Was Machu Picchu Rediscovered?

Machu Picchu was rediscovered for the outside world on July 24, 1911, when Yale lecturer Hiram Bingham was guided to the ruins by local farmer Melchor Arteaga and a Peruvian police sergeant. Families were farming the terraces at the time. Bingham's later excavations and photographs made the site famous internationally.

Bingham was searching for Vilcabamba, the last Inca refuge, and believed Machu Picchu was it; Vilcabamba was later identified elsewhere, at Espiritu Pampa. Thousands of artifacts he took to Yale became a long dispute, and Yale began returning them to Peru in 2011. Bingham first approached along the Urubamba Valley, roughly the route of today's railway described in our guide to train to Machu Picchu classes and schedules.

Why Is It Called the Lost City of the Incas?

Machu Picchu is called the Lost City of the Incas because of Hiram Bingham's 1948 book of that name, which presented it as a forgotten city. In reality it was never lost to local Quechua communities, and it was a royal estate rather than a city. The phrase remains a popular nickname.

Today the Ministry of Culture protects the site, and visitors walk its circuits on timed tickets. To see this history in person, start with our what Machu Picchu is guide and the guide to the Machu Picchu circuits.

Prefer a guided option? See our Choquequirao trek.

Inca record keeping explains how such projects were organized; our guide to the Inca quipu shows how knotted cords tracked labor. Pack animals mattered too, as our llama vs alpaca guide explains.