Túna

What Was Tuna?
Tuna was a high green hill that was raised by the Eldar. It was located within a gap of the Pelori Mountains of Aman so as to allow the Eldar to be able to see the stars they so longed to see again (as the stars were the first things that had ever beheld, and were precious to them). The light of the Two Trees fell upon it from the west side, and from the east it looked upon the yet sunless and moonless Arda. Upon the top of Tuna was built the great city of Tirion.