A close up of a small island with a castle on top of it

floating island, Decaying ruined cities and land in the sky, where once a prosperous city was formed, but the buildings made of stone and wood have decayed and are dominated by the life force of plants and trees. Collapsed and collapsed buildings, Ancient ruins, uninhabited, a paradise for birds, Artificial fountains, overhead view from a distance, angles from the sky, fantasy worlds,