After 2,000 years, a long-lost secret behind the creation of one of the world’s most durable man-made creations ever—Roman concrete—has finally been discovered by an international team of ...

lead archaeologist of digs there and at the Roman provincial capital Viminacium that the compound served. "A very small number of principiums are explored completely (and) ... so we can say ...

“Roman Architecture: A Visual Guide” is an illustrated introduction to the great buildings and engineering marvels of Rome and its empire. Published as a companion volume to Diana E. E. Kleiner’s ...