A major restoration of the Colosseum has given it a bright new look, using the same travertine stone Roman builders used 2,000 years ago.

Across the Mediterranean, hulking Roman harbors, aqueducts and amphitheaters still stand where modern concrete would have crumbled. After years of debate, a convergence of new lab work, field studies ...

Fresh excavations in Pompeii have turned a buried construction workshop into a working laboratory, revealing how Roman builders actually mixed the concrete that has baffled engineers for generations.

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, ...