Annuminas was the city of the Kings of Arnor before the capital of the North Kingdom was relocated to Fornost. It was founded by High King Elendil and it was located on the southern shores of Lake Evendim.
This is my take on the former capital of Arnor and the future capital of the Reunited Kingdom.
This map has three players.
I recommend using my mod Arnor Gondor Rohan in order to add Arnor as a playable faction in your game.
To install copy the files to: AppData/Roaming/My Lord of the Rings, The Rise of The Witch-King files/Maps
Have fun!