The travertine quarries that built ancient Rome are carving rock for a new generation of temples
By NICOLE WINFIELD and FRANCESCA PRIMAVILLA Associated Press TIVOLI, Italy (AP) — Long ago, when Romans wanted to build a new temple, they would head to the nearby quarries of Tivoli, chisel out blocks of porous rock called lapis tiburtinus — now known as travertine — and float the ...