Inca waterworks, a masterpiece of engineering, Tipon, Peru, South America

Brilliant red Forth Bridge railway crossing, UNESCO World Heritage Site, at the Fírth of Forth in South Queensferry, near Edinburgh, Scotland, United Kingdom, Europe

Inca waterworks, a masterpiece of engineering, Tipon, Peru, South America

Tambo Machay, the sacred bath of the Inca ruler and the royal women a hydraulic engineering masterpiece outside Cuzco, Highlands, Peru

Tambo Machay, the sacred bath of the Inca ruler and the royal women a hydraulic engineering masterpiece outside Cuzco, Highlands, Peru

Tambo Machay, the sacred bath of the Inca ruler and the royal women a hydraulic engineering masterpiece outside Cuzco, Highlands, Peru