These ancient structures still stand - but the people who built them remain a mystery that history can’t fully explain.
Far below the waves off the coast of Brittany, France, divers have mapped a massive stone barrier that should not exist, at least not according to the standard story of early European prehistory.
The Ancient Greek engineer Mandrocles of Samos is credited with creating the Pontoon Bridge, which spanned the Bosphorus ...
The Temple of Bastet is rarely visited today, yet it contains stonework that raises important questions about ancient ...
The ingenuity of the construction techniques used by Greek builders 2,000 years ago continues to dazzle the world. What did these ancient engineers get right? And how does looking to the past help ...