Tool marks on the stone found in Burton Street suggest it was worked in Roman times
Engineers carrying out sewer repairs in Bath have uncovered part of the Roman city walls.
The discovery in Burton Street was made when a large stone block was uncovered nearly 3ft (90cm) below the pavement, a Wessex Water spokesman said.
Further investigations revealed the block was part of the stone wall which dates back to the 4th Century.
"This is a very significant discovery," said Natalie Doran, an environmental scientist with Wessex Water.
Read the rest of this article...