Buried in Plain Sight: 10 Remarkable Pre-Contact Civilizations Discovered Beneath American Cities
Beneath the asphalt and concrete of some of America's most recognizable urban centers lie the remnants of sophisticated civilizations that flourished centuries before European explorers set foot on the continent. Urban archaeology—a discipline that operates under extraordinary logistical and financial constraints—has produced some of the most significant pre-Columbian discoveries of the past half century. These ten sites reveal just how densely layered American history truly is.