The Tower of Ecthelion was described beautifully in The Return of the King:

"...the Tower of Ecthelion, standing high within the topmost walls, shone out against the sky, glimmering like a spike of pearl and silver, tall and fair and shapely, and its pinnacle glittered as if it were wrought of crystals..."

The Tower of Ecthelion was built by Steward Ecthelion I, and was used to bear the standard of the City. It also housed the Anor-stone during the years of the War of the Ring.

Encyclopedia entry originally written by atalante_star