Liverpool's fortunes have been inextricably tied to shipping. Imports and exports, such as sugar, spice and tobacco, however, pale to insignificance for most visitors, compared with Liverpool's most famous export of all, the Beatles. It's no surprise that the city's most popular attractions are Fab Four-related, but in addition to reliving the hysteria at the Beatles Story Experience and Paul's childhood home, catch local buses to visit Albert Dock's stores, Liverpool Cathedral and Walker Art Gallery.