Birkenhead, England, a city on the Wirral peninsula across the Mersey River from Liverpool. Highway and railway tunnels run under the river to Liverpool. From the mid-1820's until the early 1990's, Birkenhead was a major shipbuilding center. The Confederate cruiser Alabama was built here in 1862. Today the city's economy is based on commerce and the production of clothing, flour, and processed foods.

Population (district): 312,294.