The Incas: Machu Picchu, Cuzco, Inca Trail

Etching of Sacsayhuaman and Golden Rectangles. Line Engraving. Tourist attraction in Cuzco, Peru

Etching of Sacsayhuaman and Golden Rectangles

Sacsayhuaman

Sacsayhuaman is an Inca walled complex near the old city of Cusco, at an altitude of 3,701 m. Some believe the walls were a form of fortification, while others believe it was only used to form the head of the Puma that Sacsayhuaman along with Cuzco form when seen from above. Like much Inca stonework, there is still mystery surrounding how they were constructed. Source Wikipedia: Sacsayhuaman.
 

Engraving

Engraving is the practice of incising a design onto a hard, usually flat surface by cutting grooves into it. Read more.
The effects of line engraving are produced by lines of different width and closeness, cut with the burin upon copper or similar material.