The web team for the Lord of the Rings Online has published another of their Exploring Middle-earth articles. The focus of this installment is the 'Rhunendin'.

When the Angmarim built up their defenses in the region of Angmar, the town of Rhunendin was created. Only the strongest and most cunning adventurers may hope to approach -- and survive -- this mighty bastion guarding the western approach to Carn Dûm.

You can read the article here, or here from the European site.