I wanted so badly to have a large, English-style, only-nose-out, soak-like-a-hippo bathtub in my new apartment. I settled for a large shower, but at 72 by 12 feet, maybe I should have rented the world's largest bathtub instead.

This 4-food deep naffness is indeed the world's largest and tackiest bathtub, needing 6,340 gallons (24,000 liters) of water. It has sauna boxes—whatever that means—LCD screens, jacuzzi area, and built-in showers. All that is fine, but can I lift it up to the top of the Mont Blanc? I didn't think so. [Luxury Launches]