20. The Atlantis Sunken Monument Citadel
What This Idea Means
A breathtaking underwater mega-city enclosed in an enormous ocean-drained glass sphere, or fully submerged with glowing prismarine temples and aquatic life sanctuaries.
How to Make It
- Outer Enclosure: Drain a large area of ocean using sponges inside a giant 80-block glass sphere or multi-dome structure.
- Monument Architecture: Build classical Greek/Atlantean temples using quartz pillars, prismarine bricks, sea silk (white wool), and gold accents.
- Aquatic Landscaping: Fill surrounding exterior waters with sea pickles, coral reefs, conduits, and glowing kelp forests to frame the dry interior city.
Tips and Variations Needs
- Conduit Power: Position multiple active Conduits around the city perimeter to give players permanent underwater breathing, night vision, and speed.
- Variations: Build an Ancient Ruined Atlantis overrun by drowned mobs, sunken ships, and shattered glass domes filled with sea life.









