Wikipedia information

Led Zeppelin’s sixth studio album Physical Graffiti, against all odds (being a double album) was one of the most successful Led Zeppelin albums ever. The album was released in 1975 and it has gone 16 x platinum in the United States alone! The name for the album was inspired by a second hand clothing store located in the basement of 96 St. Mark’s Place – the store was called “Physical Graffiti”.

Physical Graffiti’s cover photo, designed by Peter Corriston features a stylised photograph of a New York City tenement block of two five-storey buildings located at 96 and 98 St. Mark’s Place in New York City. Corriston shot the five-story buildings as they were, but in order to fit them properly for the cover art he had to crop out the entire fourth floor; so eventually the album cover shows four stories instead of five. Corriston also did some notable work on some famous Rolling Stones album covers such as Some Girls, Emotional Rescue and Tattoo You, for which he won a Grammy Award in the category of ‘The Best Album Package’.