Build a massive central floating is...

Build a massive central floating island inspired by Barad-dûr from Lord of the Rings. The island should be 250 blocks wide and suspended high above the void. The underside must be jagged with hanging spikes, chains, cracked rock formations, lava drips, and glowing magma veins. In the center, construct a colossal black tower made of deepslate, blackstone, basalt, and obsidian. The tower rises 180 blocks above the island and features massive curved spires. At the very top, create a giant Eye of Sauron using orange stained glass, lava, shroomlights, and glowstone so it is visible from thousands of blocks away. Around the tower, build concentric circular terraces with dark gothic architecture, bridges, arches, statues, and glowing cyan accents. Create 12 evenly spaced rail hubs around the out