BEC, Brain Extraction Cathedral is a colossal biomechanical gothic interior dominated by a suspended organic brain-extraction apparatus hanging high within the central nave. Towering dark stone columns, pointed arches, ribbed vaults, circular windows, and dense carved ornamentation form a vast cathedral structure fused with grotesque biological machinery. The central apparatus consists of exposed brain tissue, clustered eyes, fleshy cavities, jaws, teeth, tentacle-like tubes, cables, and elongated mechanical-organic limbs extending toward the surrounding architecture. Beneath it, a cylindrical extraction chamber emits an intense red-white energy stream, while several smaller brain-bearing organic modules float around the central structure. Dark weathered stone and blackened metal contrast with wet flesh, exposed tissue, bone-like surfaces, and glowing red biological components. Diffuse cold daylight enters through the tall windows and open upper vaults, while the extraction machinery casts localized crimson illumination across the central nave, creating a monumental, oppressive, decaying biomechanical atmosphere