Nevermind - Nirvana
Aenema - Tool*
Lateralus - Tool*
10,000 Days - Tool*
Ride the Lightening - Metallica
Self-Titled - Rage Against the Machine
Dark Side of the Moon - Pink Floyd
Dookie - Green Day (lame now, but was amazing then)
Hybrid Theory - Linkin Park (i know, i know, but play it all the way though once)
There are many, many more, but those are the best in terms of every single song being amazing.
* denotes that if you have not heard it, you are retarded and missing out