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Interesting facts about Machu Picchu

Machu Picchu, a breathtaking ancient Inca city perched high in the Andes Mountains of Peru, is one of the most iconic and visited archaeological sites in the world. Often referred to as the “Lost City of the Incas,” this UNESCO World Heritage site continues to captivate the imagination of historians, archaeologists, and travelers alike. 

Here are some fascinating facts about Machu Picchu that highlight its historical, cultural, and architectural significance.

Discovery and exploration

Rediscovery in 1911

Although locals were always aware of Machu Picchu, the site was largely unknown to the outside world until American historian Hiram Bingham rediscovered it in 1911. Bingham was searching for Vilcabamba, the last refuge of the Incas during the Spanish conquest. 

Instead, he stumbled upon the ruins of Machu Picchu, which had remained hidden under dense vegetation for centuries. Bingham’s expedition brought international attention to the site, leading to extensive archaeological research and tourism.

Early explorations

Before Bingham’s arrival, Machu Picchu had been visited by other explorers, including Agustín Lizárraga in 1902, who left an inscription at the site. However, Bingham’s discovery is often credited with introducing Machu Picchu to the global stage due to his subsequent publications and efforts to promote the site.

Architectural marvel

Ingenious construction

Machu Picchu is renowned for its sophisticated and precise stone masonry. The Incas constructed the city using a technique called “ashlar,” where stones are cut to fit together without mortar. 

This method allowed the structures to withstand seismic activity, a common occurrence in the region. 

The stones fit so perfectly that not even a knife blade can be inserted between them, showcasing the Incas’ advanced engineering skills.

Terracing and agriculture

The site features extensive agricultural terraces, which were ingeniously designed to prevent erosion and manage water drainage. These terraces not only supported crop cultivation but also helped stabilize the steep mountain slopes. The Incas grew various crops such as maize, potatoes, and coca, adapting to the challenging Andean environment.

Sacred and secular buildings

Machu Picchu comprises over 150 structures, including temples, residences, and ceremonial buildings. Notable sites within the city include the Temple of the Sun, the Intihuatana stone, and the Room of the Three Windows. 

The Temple of the Sun is particularly significant, believed to have been used for astronomical observations and religious ceremonies. The Intihuatana stone, a carved rock pillar, is thought to have served as an astronomical clock or calendar.

Cultural significance

Royal estate

It is widely believed that Machu Picchu served as a royal estate for the Inca emperor Pachacuti, who reigned during the 15th century. 

The city was likely used as a seasonal retreat, where the emperor and his entourage could escape the political hubbub of the capital, Cusco. 

The luxurious nature of the site, with its finely crafted structures and terraces, supports this theory.

Religious importance

Machu Picchu held significant religious importance for the Incas. The site is aligned with various astronomical events, such as solstices and equinoxes, indicating its use for religious and ceremonial purposes. 

The Temple of the Sun, in particular, demonstrates the Incas’ reverence for the sun god Inti, a central deity in Inca religion.

Preservation and Challenges

UNESCO world heritage site

In 1983, Machu Picchu was designated a UNESCO World Heritage Site, recognizing its outstanding universal value and importance as a cultural and historical treasure. 

This designation has helped protect and preserve the site, although challenges remain due to its popularity and environmental factors.

Tourism impact

Machu Picchu attracts over a million visitors annually, which poses significant challenges for preservation efforts. The influx of tourists can lead to wear and tear on the ancient structures and increased risk of erosion. 

In response, the Peruvian government has implemented measures to manage tourism, such as limiting daily visitor numbers and enforcing strict regulations to minimize the impact on the site.

Environmental threats

The location of Machu Picchu in a high-altitude, tropical rainforest environment makes it vulnerable to natural disasters such as landslides and earthquakes. 

Conservationists and archaeologists continually work to mitigate these risks through various stabilization and restoration projects.

Mysteries and speculations

Purpose of Machu Picchu

Despite extensive research, the exact purpose of Machu Picchu remains a subject of debate among scholars. Some theories suggest it was a religious site, a royal retreat, or a military stronghold. 

The lack of written records from the Incas adds to the mystery, leaving much to speculation and interpretation based on archaeological evidence.

Inca trail

The Inca Trail, a network of trails leading to Machu Picchu, is an ancient pilgrimage route that provides insight into the site’s significance. The trail includes various archaeological sites and stunning landscapes, reflecting the journey’s spiritual and ceremonial importance. 

Hiking the Inca Trail remains a popular way for modern visitors to experience the historic path taken by the Incas.


Machu Picchu stands as a testament to the ingenuity, resilience, and sophistication of the Inca civilization. Its architectural marvels, cultural significance, and breathtaking location continue to inspire awe and curiosity. 

As one of the most visited and studied archaeological sites in the world, Machu Picchu offers a glimpse into a bygone era and serves as a reminder of the rich cultural heritage of the Andes. Efforts to preserve and protect this remarkable site are crucial to ensuring that future generations can continue to explore and appreciate its wonders.