Modern timber and concrete internal stair case within office tenant Stair case in the modern hotel interior. achievement, architecture, bright, building, business, concept, contemporary, corridor, decor, decoration, design, elegance, elegant, empty, entrance, floor, flooring, furniture, hall, home, hotel, indoor, inside, interior, light, living, lobby, luxury, marble, modern, nobody, office, perspective, progress, room, space, stair, staircase, stairs, step, style, wall, white