Location from The Wheel of Time by Robert Jordan
The greatest fortress ever built — it held Callandor for three thousand years and fell only when the Dragon Reborn proved the prophecies true by walking through its defenses.
The Stone of Tear was built to house Callandor — the Sword That Is Not a Sword — and to be the test that proved the Dragon Reborn. The prophecies said the Stone would never fall until the Dragon came. For three thousand years, it didn't. Then Rand walked in, drew Callandor from the crystal column, and the unbreakable fortress became just another castle. The Stone's fall was the moment the world could no longer deny that the Dragon was Reborn. Every subsequent political arrangement traces back to a farm boy pulling a glowing sword from a stone.
A fortress the size of a hill, built from massive stone blocks without mortar. Its walls are hundreds of feet thick and its interior is a labyrinth of corridors, armories, and the Heart of the Stone where Callandor floated in a crystal column. It was built during the Breaking of the World and has never been taken by conventional assault.
Also known as: the Stone of Tear, the Stone