to rephrase-- What are popular music's recorded masterpieces that everybody in R&P should know about and have an opportunity to appreciate?

to help picture this ritzy music museum, imagine walking through the various galleries, but instead of viewing sculptures or paintings, when you step in front of a song's plaque, it automatically starts playing for your listening pleasure

bq: have you been to any sort of music museum?
for anyone else who's gonna answer-- ok, i think we got the classic classics covered, so just assume people like Bob Dylan and Pink Floyd and Elvis and everyone have their own rooms. now, i'm looking for stuff more like the Flaming Lips and King Crimson, thanks everyone!