§ Of the Rings of Power and the Third Age The Silmarillion

In the south the realm of Gondor endured, and for a time its splendour grew, until it recalled the wealth and majesty of Númenor ere it fell High towers the people of Gondor built, and strong places, and havens of many ships; and the Winged Crown of the Kings of Men was held in awe by people of many lands and tongues. For many a year the White Tree grew before the King's house in Minas Anor, the seed of that tree which Isildur brought out of the deeps of the sea from Númenor; and the seed before that came from Avallónë, and before that from Valinor in the Day before days when the world was young.