The early days of the Beatles in Liverpool have been well-documented - but the wider region also played a key part in the band's history.
An unassuming West Lancashire site is among many places which form part of the band's story - and especially that of John Lennon, who was murdered in New York City 42 years ago today.
Today Mill Brow Water Treatment Station in Scarisbrick is operated by United Utilities, and villagers would be forgiven for being unaware of its small but significant role in the career of one of the world's best-known musicians.