Across the world, archaeologists keep stumbling on structures so old, so large and so technically sophisticated that they seem to have no right to exist in the eras that produced them. From submerged ...

NEW YORK (AP) — In the quest to build better for the future, some are looking for answers in the long-ago past. Ancient builders across the world created structures that are still standing today, ...

Italian researchers, who made waves earlier this year with claims of vast structures hidden beneath the Pyramid of Khafre, now say they have identified a colossal vertical shaft leading and two ...