Santana - Lotus
Yessongs, Fragile, TFTO, Relayer (and all Roger Dean)
Brain Salad Surgery
Led Zep 3 & 4
Roy Harper - HQ
Gnod Drop Out with White Hills
Sun O)))) & Boris - Altar
Serpentina Satelite - Mechanica Celeste
I'll come up with dozens more probably.
A late entry - The Alps - Easy Action
The new Alps album cover folds into a rather fetching day-glo pyramid. Oh yes.