An important dig below Notre-Dame is speculated to be the "dig of the century" for it uncovered around 1,700 years of Paris history in the cathedral's forecourt. Archaeologists hit Roman layers and found lots of stuff, such as a fourth-century coin, odd-marked medieval pottery, and old house remains.

Archaeologists are digging beneath Notre Dame cathedral to explore as far back as Roman Paris from 2,000 years ago.

Archaeologists are digging beneath Notre Dame Cathedral to explore as far back as Roman Paris from 2,000 years ago