MPL Communications – 1 Soho Square, London

Since the late 1950s, Soho has served as a popular gathering spot for London's emerging pop stars. It's also where you can locate Paul McCartney's MPL Communications, his music publishing company since 1970, situated in an elegant 18th-century building at Number 1 Soho Square. What's not widely known is that McCartney holds the title of the world's largest independent song publisher, with ownership rights to over 3,000 songs and Broadway shows, including Buddy Holly's catalog. While accountants handle the management of his musical assets, he supervises various creative endeavors.

Additionally, there's a recording studio in the basement, an exact replica of EMI No. 2. While fans aren't permitted to visit the premises, this is where you might catch a glimpse of Macca himself during your London tour. As is his custom, he can be either remarkably elusive or surprisingly accessible depending on his mood.

If you happen to pass by at night and the curtains are open, you'll be treated to a view of the upper floor office adorned with a wall entirely covered in gold and platinum records.