Dark mysterious atmosphere, medieval-inspired architecture, ornate stone carvings, grandiose chandeliers, luxurious velvet fabrics, rich wood tones, eerie dim lighting, mysterious shadows, deep crimson reds, midnight blues, charcoal greys, weathered copper accents, mystical purple hues, abandoned asylum feel, distressed textures, worn wooden furniture, vintage metal fixtures, candlelit ambiance, dramatic archways, grand staircases, labyrinthine corridors.