Physical Graffiti's 40th Anniversary Published 10 years ago by Jeff Penfield 1975 was when Led Zeppelin reached their peak. Sure, their second and fourth albums receive more praise, but Zeppelin truly ruled the world in 1975. Read more about 'Physical Graffiti's 40th Anniversary'... Tagged : Led Zeppelin | Jimmy Page | Physical Graffiti | Brandy And Coke | Swan Song