A medieval stone castle with curtain walls forming a square, four tall corner towers with battlements, a central keep, a gatehouse with an archway and portcullis, and a surrounding moat with a small drawbridge.

A steampunk airship with a wooden hull, large brass propellers on each side, a balloon made of patchwork fabric above the deck, hanging ropes and ladders, and a glass-enclosed bridge at the front

A cozy cottage

A massive world tree: an enormous trunk with roots visible above ground forming archways, multiple levels of thick branches like platforms, glowing fruit hanging from smaller branches, and vines draping down

A floating island ecosystem: a chunk of earth suspended in air with waterfalls pouring off multiple edges, a small forest on top, exposed roots and rocks hanging underneath, and smaller floating rocks nearby connected by ancient chain bridges

A skyscraper