Grand opera house, baroque style, ornate decorations, intricate carvings, gilded details, red velvet curtains, crystal chandeliers, majestic staircase, ornate balconies, luxurious box seats, golden lighting fixtures, richly patterned carpets, opulent interior design, grandiose architecture, high ceilings, dramatic shadows, warm ambient light, afternoon sunbeams streaming through stained glass windows, lavish frescoes adorning the ceiling, marble floors, intricate moldings, regal atmosphere.