Ever dream of living on board a cruise ship? Well, if you have $4,000,000+ to plop down on a "Residence at Sea" you can do just that on The World. Choose from a 377 sq ft studio or a 3,000 sq ft apartment with full kitchen, marble entry, three bedrooms, and dining room for six.

Of course, annual fees will run you $290,000. Oh, and meals aren't included either. The bright side: You only have to attend the lifeboat drill once per month.