What is "verulamium"

Verulamium was a town in Roman Britain. It was sited in the southwest of the modern city of St Albans in Hertfordshire, Great Britain. A large portion of the Roman city remains unexcavated, being now park and agricultural land, though much has been built upon (see below). The ancient Watling Street passed through the city. Much of the site and its environs is now classed as a scheduled ancient monument.