Led Zeppelin IV

Mystery defines this 1971 masterpiece, famously released without a title or even the band's name on the cover. It features four distinct symbols representing each member, turning the packaging into a cryptic puzzle that fans have spent decades trying to decode.

The music captures a band at the absolute peak of their creative powers, blending heavy blues riffs with mystical folk influences. Recorded largely at the isolated Headley Grange, the album utilizes the natural acoustics of the space to create the massive, thunderous drum sound that defines tracks like When The Levee Breaks.