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
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