関連ワード:
which is the most valuable thing in the world which is the most precious thing in the world which is the most important thing in the world which is the most rarest thing in the world which is the most rare thing in the world which is the most rarest object in the world which is the most precious object in the world which is the most expensive thing in the whole world which one is the most expensive thing in the world which is the second most expensive thing in the world
