Ragyiel, the Fallen Citadel of Clouds

a vision of Ragyiel in its splendour:

Once, the City of Ragyiel was a populace center and a military fortress built by the Tielfing in a single night using an army of infernal masons to counter the might of Khepathia, the Eladrin City of Old. Now, so many thousands of years later, the place is a hallow shell home to semi-feral beasts who try to assimilate as a culture yet can not. The Gnolls of Gergehn, the Harpies of Sael Omier and the Hobgoblins of Mixtarateign all now call the ruins of Ragyiel home.