39 years ago today, after a two year album break, Led Zeppelin released Physical Graffiti.
A double album, hit the number one spot on the U.S. charts in just two weeks time.

The album sold eight million copies in the U.S., and won a top of accolades.
Physical Graffiti's album's sleeve is a photograph of a New York City tenement block, featuring window illustrations that interchange.
Led Zeppelin squeezed in 15 tracks on the double album set.

Happy Birthday 'Physical Graffiti!'
Enjoy Led Zeppelin belting out 'Trampled Underfoot.'