Megalithic walls near Cusco's cathedral feature trapezoidal doorways with precise angles, built without mortar using perfectly fitted stones. Spanish colonial repairs from the 1600s are visibly inferior to the original Inca construction.
Ancient megalithic wall with trapezoidal doors and windows built into downtown Titiqaqa, Cusco restaurant

Key facts
- Megalithic wall located near the cathedral, now part of a restaurant structure
- Features multiple trapezoidal windows and doorways with precise angles
- Doorways are approximately 12 feet tall
- No mortar used in original construction
- Straight lines and angles are perfectly precise
- Wall is constructed at a slant like a pyramid or ziggurat
- Spanish repairs from 1600s are visible and inferior to original work
- Evidence of cataclysmic damage to upper portions of wall
Site mentioned
Sources
The Coricancha: Parts 2 and 3 - Beyond the Rangebeyondtherange.org
(Below) The trapezoid-shaped doors and inward-sloping walls of the Coricancha. ... angle stone found along Cusco's Calle Hatunrumayoc. All ...
The Twelve-Angled Stone in Cusco - Atlas Obscuraatlasobscura.com
Comprised of multiple massive stone blocks, the wall was built without the aid of mortar or any kind of binding material. ... wall is a sight to ...
The Twelve Angled Stone in Cusco: A Must-See Inca Wondermachutravelperu.com
The design includes approximately 12 angles that fit perfectly into the adjacent wall. This majestic stone was laid by the Incas more than ...
Masonry Techniques of the Inca's Master Buildersearthasweknowit.com
The Inca's precise stonework is often depicted as shrouded in mystery. Yet their construction methods were documented by early Spanish chroniclers.
The Twelve Angled Stone in Cusco: Inca Genius Explainedalpacaexpeditions.com
The Incas did not use mortar. Instead, they quarried massive rocks, shaped them with hammer stones, and fitted them together through patient ...
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