Construction workers discovered a mosaic floor from the 4th century B.C.E. while installing underground water pipelines in Eretria, a Greek town north of Athens. The mosaic, made of white, black ...

The tesserae in such works are sometimes just an eighth of an inch across, according to D.J. Smith’s essay on mosaics in “A Handbook of Roman Art,” edited by Martin Henig (Phaidon Press, 1995).

The tiny tiles create a massive piece of art, stretching over 65 feet long and reaching almost 20 feet wide, experts said. Scenes from Greek and Roman mythology decorate the fourth-century mosaic.

Archaeologists discovered a massive ancient Roman mosaic in Rastan, Syria, depicting “rare” scenes from Greek and Roman mythology, experts say. Omar Sanadiki AP An intricate mosaic from ...

Archaeologists discovered a massive ancient Roman mosaic in Rastan, Syria, depicting “rare” scenes from Greek and Roman mythology, experts say. Omar Sanadiki AP An intricate mosaic from ...

Archaeologists discovered a massive ancient Roman mosaic in Rastan, Syria, depicting “rare” scenes from Greek and Roman mythology, experts say. Omar Sanadiki AP An intricate mosaic from ...