The Castle

It was always known as "The Castle". There were other castles in the land, but only this one was known as The Castle. It had been built a long time ago, so long that there were no reliable records of its building. It showed the scars of violent conflicts, but these had all been repaired as well as they could be, and The Castle had not been attacked within the span of recorded history. Some stories claimed a war of magic had been fought up there, some claimed a purely technological explanation for the damage, but no one knew.
There were some similar scars in other parts of the land, but no other structure like The Castle. The Castle appeared like something organic, growing from the rock. The Prince knew that this was more than just an illusion as the older parts of The Castle were indistinguishable from the rocks of the mountains. He and workers of his had been lowered carefully down the side of The Castle and there were no seams where The Castle became the mountain.
There were no seams anywhere in The Castle, except where the damage had been repaired, and where the New Tower had been bolted on. The Prince regretted that the technology or magic that could repair The Castle properly or let it heal itself was long forgotten.