@AugustTheWarrior had notified me ingame about the Throne in the Halls of Gondor. It is described in text in the books that there was a crown above the Throne.
"Suddenly Pippin was reminded of the hewn rocks of Argonath, and awe fell upon him, as he looked down that avenue of kings long dead. At the far end upon a dais of many steps was set a high throne under a canopy of marble shaped like a crowned helm; behind it was carved upon the wall and set with gems an image of a tree in flower - ROTK"
Figured an architect could possibly add amendments to the room when possible @Credoo
"Suddenly Pippin was reminded of the hewn rocks of Argonath, and awe fell upon him, as he looked down that avenue of kings long dead. At the far end upon a dais of many steps was set a high throne under a canopy of marble shaped like a crowned helm; behind it was carved upon the wall and set with gems an image of a tree in flower - ROTK"
Figured an architect could possibly add amendments to the room when possible @Credoo