"A massive, symmetrical 3D concentr...

"A massive, symmetrical 3D concentric city layout of the Lost City of Atlantis with a strict maximum diameter of 200 blocks. The city consists of three concentric circular tiers connected by grand archway bridges spanning across water. The architecture features classical Greek style columns made of white quartz, glowing underwater foundations, and grand temple buildings with oxidized copper and cyan prismarine domes. The center holds a massive towering citadel surrounded by waterfalls."