Liverpool is a city located in northwest England on the eastern side of the Mersey Estuary. It has a population of over 454,000 people and is the second largest commercial port in England, known for its musical heritage as the origin of the Merseybeat sound and as a football city. Some of Liverpool's most notable landmarks include the Royal Liver Building, Town Hall, Port of Liverpool Building, St. George's Hall, Metropolitan Cathedral of Christ the King, Anglican Cathedral of Christ, Tate art gallery, Chinatown, and Mathew Street where the Beatles began their career.