Your favorite 'concept' album


I'm not a concept album fan, however there are a few I've gone down the rabbit hole with. My personal fave, is '10,000 Years' by The Honeydogs. The backstory & lyrics are so vivid, and futuristic, it never fails to reveal something new to me. Even the bandleader said at times he's not sure what it's about.

Fascinating info & interview in the url. Check it out! 

Any others? 
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There's a Riot Goin' On - Sly and The Family Stone 1971

America Eats Its Young - Funkadelic 1972 

How did I forget these?

Please forgive me y'all for having flashbacks of riots.
2112 - RUSH
Tommy - The Who
Yoshimi Battles the Pink Robots - The Flaming Lips 
Days of Future Passed  - The Moody Blues
Radio Kaos - Roger Waters
The Wall - Pink Floyd
War Of The Worlds - The Moody Blues

etc.
A lot of good ones have been mentioned. I want to add Kilroy Was Here by Styx.