A massive ancient Greek grand palac...

A massive ancient Greek grand palace and Poseidon temple made of white quartz and light grey concrete, standing tall on a high central island. Features gigantic fluted columns, golden-trimmed pediments, expansive marble staircases, and glowing cyan prismarine accents along the rooflines. Majestic, symmetrical, divine classical architecture surrounded by open blue skies. A monumental ring-shaped city layout with deep water canals separating concentric rings of land. Constructed using polished diorite, white concrete, and dark prismarine borders. Spanned by ornate arched stone bridges decorated with red and gold banners, sea-lantern lighting fixtures, and aqueduct waterfalls spilling into the main waterways.