My top 5 would be
1. Pink Floyd - Dark Side Of The Moon
2. Pink Floyd - Wish You Were Here
3. Led Zeppelin - Houses Of The Holy
4. Jimi Hendrix - Bold As Love
5. King Crimson - In The Court Of King Crimson
Beatles - Magical Mystery Tour
The First Three "Boston" Albums
Muse - Origin Of Symmetry
GTFO, The Beatles are were far superior, more original, and more influential than fucking Paradise Lost could ever be.
Just for that, here are some of the best non-metal albums of all time:
Revolver
Sergeant Pepper's Lonely Hearts Club Band
White Album
Abbey Road
Let It Be