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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Quadrophenia
Tommy
Any Floyd released inclusive between Meddle and The Wall
Greendale (underrated Neil Young album)
Terrapin Station
Days of Future Passed
Elton John, Captain Fantastic and the Brown Dirt Cowboy! Depicts the journey of one of the greatest song writing partnerships of our pop culture.
The Great Adventure by Neal Morse Band. (and The Lamb Lies Down on Broadway of course)