Inca architecture is the most significant pre-Columbian architecture in South America. The Incas inherited an architectural legacy from Tiwanaku, founded in the 2nd century B.C.E. in present-day Bolivia. A core characteristic of the architectural style was to use the topography and existing materials of the land as part of the design.

The capital of the Inca empire, Cuzco, still contains many fine examples of Inca architecture. The famous royal estate of Machu Picchu (Machu Pikchu) is a surviving example of Inca architecture.

Inca architecture is widely known for its fine masonry, which features precisely cut and shaped stones closely fitted without mortar ("dry").

Inca architecture is strongly characterized by its use of the natural environment. The Inca managed to seamlessly merge their architecture into the surrounding land and its specificities. At its peak, the Inca Empire spanned from Ecuador to Chile. Yet despite geographic variances, Inca architecture remained consistent in its ability to visually blend the built and natural environment.

In particular, Inca walls practiced mortarless masonry and used partially worked, irregularly shaped rocks to complement the organic qualities and diversity of the natural environment. Through the dry-fitted masonry techniques of caninacukpirca, the Incas shaped their stone to conceal natural outcrops, fit tight crevices, and ultimately incorporate the landscape into their infrastructure.

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