Some really great stuff posted here, if you mean an album you can play 10 times in a row from the start to an end.
Through the eyes of a nostalgy I remember before I turned 16 or so I could listen for ages in the past to the:
No Prayer for the Dying and Seventh Son of a Seventh son from IM
Black album from Metallica
Apetite from Guns n Roses (most killing album of the 80's for me)
Pearl Jam - Ten
then what hasn't been mentioned before:
Soundgarden - Superunknown:
RHCHP - Blood Sugar Sex Magic (best single set of bass lines album I own)
Alice in Chains - Dirt (1992)
Jimi Hendrix - Electric Ladyland (1968 - this is the banned version btw. )
Then most of the Black Sabbath stuff with Ozzy (everything from "Black Sabbath" till "Sabotage")
AND:
Rainbow Rising (1976)
