As Rome digs its first new metro route in decades, an archaeologist safeguards the city’s buried treasures

The world underneath Rome’s cobblestones has a rhythm. Under a newly raised canopy of steel beams almost 30 feet listed below the hum of Vespas and buses, ­Rossella Rea,... Read more »

Why archaeologists are arguing about sweet potatoes

At some time, sweet potatoes crossed the Pacific. This much we understand. When it comes to the rest– How? When? Why?– we’re simply uncertain. Or, to be more clear,... Read more »