The luxurious Atocha is the newest Japanese-style soaking tub from Frederick, Colo.-based Diamond Spas. Measuring 36 inches tall, 68 inches long, and 24 inches wide, the elliptical-shaped vessel is made from 4-inch copper strips that have been welded together, grounded down, and polished. Such opulence doesn’t come cheap—the tub retails for $23,545—but you can feel good about what you’re getting: the copper strips used in its production contain 90 percent to 95 percent recycled content. Diamond Spas, 800.951.7727.