Under a vaulted, pointed-arch ceiling, this Gothic bathroom centers on a black marble clawfoot tub with a white enamel rim and brass filler, fed by a gargoyle spout. Carved stone walls and tracery niches frame a stained-glass lancet window that washes jewel tones over a black-and-white marble checkerboard floor. Wrought-iron sconces and a deep purple velvet curtain heighten the drama for cathedral-like luxury.