🇵🇪 Peru · Hydraulic works
Puquios de la Achirana
Late Horizon Inca Imperial 1450 CE · Inca (Quechua) imperial engineers
12 Inca puquios gallery aqueducts (17 km, 1450 CE) of the Achirana canal, Inca ashlar aqueduct feeding Ica Valley.
🇵🇪 Peru · Archaeological wonder
Machu Picchu
Late Horizon (Inca Imperial, ~1450–1530 CE) · Inca (Quechua)
15th-century Inca citadel perched at 2,430 m on a narrow saddle between Machu Picchu and Huayna Picchu peaks above the Urubamba Valley.