Ancient Copper Factory unearthed in Rome

A sixth-century copper factory, medieval kitchens still stocked with pots and pans, and remains of Renaissance palaces are among the finds unveiled Friday by archaeologists digging up Rome in preparation for a new subway line. Archaeologists have been probing the depths of the Eternal City at 38 digs, many of which are near famous monuments or on key thoroughfares.

Over the last nine months, remains — including Roman taverns and 16th-century palace foundations — have turned up at the central Piazza Venezia and near the ancient Forum where works are paving the way for one of the 30 stations of Rome's third subway line.

"The medieval and Renaissance finds that were brought to light in Piazza Venezia are extremely important for their rarity," said archaeologist Mirella Serlorenzi, who is working on the site.

Serlorenzi said that among the most significant discoveries in a ninth-century kitchen were three pots that were used to heat sauce. Only two others had been found previously in Italy.

The copper factory "factory" was used to work on copper alloys, and it consisted of small ovens, traces of which can be seen. Small copper ingots were found and are being analyzed.