Simple steampunk papal chamber. Enclosed room with four walls, no ceiling (top-down view). Walls made of aged stone with embedded brass pipes and a few exposed gears. Add arched windows with stained glass and cogwheel patterns. Floor is stone or metal tiles with light steampunk details. No throne or furniture needed, just a clean ceremonial room with a steampunk mood. Include a few wall-mounted tubes or vents with soft glowing light. Warm atmosphere, sacred and mechanical. Fully enclosed room, open from above.