Board Thread:Suggestions forum/@comment-69.157.69.164-20150501192325/@comment-26298013-20150508200817

I really disagree with Utumno- it was UTTERLY destroyed by the Valar when they first captured Melkor. They destroyed the very lowest pits and halls, and dragged Melkor from the very bottom of his fortress to the top. In a super-chain. So, yeah, Utumno was entirely destroyed.

Angband is the fortress that was not entirely destroyed. Then Morgoth raised the towers (Mountains) of Thangorodrim over the few pits and halls and such that remained undestroyed by the Valar (They were trying to get Morgoth, and so didn't entirely destroy Angband), and rebuilt it into a great fortress. Until Earendil threw a huge dragon onto those towers. Then Angband/Thangorodrim WAS entirely destroyed. Lesson learned: Don't fight the Valar. Or try to make large fortresses in ME. They just get attacked...