Inka Wasi, Huancavelica, Archaeological site in Huaytará Province, Peru.

Inka Wasi is an archaeological site in Huancavelica Region located at 3,804 meters (12,480 feet) elevation in the central Andes highlands. The ruins include multiple stone chambers, passageways, and walls spread across a mountain area.

Inka Wasi was built during the reign of the Inca Pachacútec, around 1440, as a palace, not an administrative center. Its position near the Vizcacha River has led to its interpretation as a ceremonial or resting site. It was declared a National Cultural Heritage by Directorial Resolution No. 247/INC on 27 March 2002.

The name Inka Wasi means "house of the Inca" in Quechua; Spanish chroniclers and later writers also spelled it Incahuasi or Inca Huasi. Among the buildings stand the Intihuatana and the Palacio de las dos ventanas (Palace of the Two Windows). Local accounts recorded around 1941 describe three stone seats of the Inca in the river below, with natural marks of feet and seat, where the water jet raises bubbles.

The site is roughly 25 kilometers from the town of Huaytará and can be reached via mountain paths, with local guides available to help navigate. Visitors should prepare for high elevation, harsh weather conditions, and challenging terrain.

The intihuatana, a solar observatory, let its builders track the sun's movements and predict the solstices and equinoxes. Explorer Abelardo Santiesteban recorded in his daily notes around 1941 that three stone seats of the Inca stood in the river, with natural marks of feet and seat, where the water jet raised bubbles.