Gothic London architecture, grand cathedral, intricate stone carvings, stained glass windows, pointed arches, ribbed vaults, flying buttresses, ornate spires, dark mysterious alleys, old lanterns, misty foggy atmosphere, twilight, dim streetlights, mysterious shadows, ornate iron fences, crumbling stone walls, overgrown ivy, Gothic Revival style, intricate gargoyles, pointed towers, grand entrance doors, heavy wooden doors, ancient cobblestone streets, eerie ambient lighting.