Nice pick on King Crimson. I've listed some on here already but here are a few more. Each one has something different to bring to the table enjoy.
"Eldorado, a Symphony"- Electric Light Orchestra
"Close to the Edge"- Yes
"Abigail"- King Diamond
"The Mantle"- Agalloch
"You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life." Albert Camus