The view from space has always captured human imagination. For decades, people believed the Great Wall of China was the only man-made structure visible from orbit, a claim that turned out to be more ...

PAWHUSKA, Okla. — The Osage Nation had reacquired Sugarloaf Mound, a sacred Osage site and the oldest human-made structure in St. Louis. The Osage Nation Historic Preservation Office (ONHPO) announced ...

Dams and levees are critical pieces of our infrastructure and our history. They're one of the oldest type of human-made structures on the planet, and they were one of the first things that that ...