Marcus Vipsanius Agrippa was a Roman general best known for his military victories, but he also helped rebuild Rome, providing aqueducts, statues and the original Pantheon. Nominating him is Dr Daisy Dunn, author of The Missing Thread, who dubs him ancient Rome's king of cement. Joining her is Dr Shushma Malik from Cambridge University who throws light on the man who won the battle of Actium and was for many years second in command to the emperor Augustus.

The programme is presented by historian Helen Carr and was produced in Bristol by Miles Warde.