Build a large dark gothic throne ha...

Build a large dark gothic throne hall. Symmetrical. Architecture only. No characters. Center: elevated circular throne platform (blackstone, deepslate). Empty dark throne on top. Long red drapes flowing down the platform. Behind the throne: three giant gothic arches. Inside each arch: glowing infernal portal (nether portal or lava + red glass). Add fire and red lighting. Atmosphere: dark, hellish, cinematic.