I Built a MASSIVE NAUTILUS CITY in Minecraft Hardcore… My Biggest Project Ever!

In Minecraft Hardcore, I challenged myself to build a massive Nautilus-shaped city—complete with rooms, farms, tunnels, glass domes, and underwater views.
This build pushed my limits, my resources, and nearly cost me the world multiple times.
From gathering materials to shaping the spiral shell, this is my biggest Hardcore project yet—Farzy-style creativity with Hardcore-level danger.
Will the Nautilus City become my greatest base ever… or my final mistake?