Potters Bar

Potters Bar is a town in the Hertsmere borough of Hertfordshire, England, located 18 miles (29 km) north of Central London. In 2001 it had a population of 21,618.

The town originated in the early 13th century and remained a small settlement until the arrival of the Great Northern Railway in 1850. It is part of the London commuter belt.

More information on the Wikipedia page