The airship would feature a two-level, ring-shaped structure that contains nearly 1 acre of living space and can be lowered from the aircraft onto land or water.

The airship also would include enough payload capacity to carry a megayacht and a helicopter.

Starting at $330 Million 

Although the Aeroscraft airship was designed to revolutionize long-range cargo transport, its remarkable capabilities excite the imagination well beyond such practical applications. Designed and built by the Aeros Corp. of Montebello, Calif., the Aeroscraftis longer than two football fields and about as tall as an 18-story building. Its cargo area is more than 1 million cubic feet, and it can transport as much as 250 tons (compared to about 150 tons for an Airbus A380, the world's largest jetliner).

For this gift, the designers at London's Andrew Winch Designs (which specializes in private aircraft, megayachts, and interiors) have conceived a version of the colossal craft that would serve as an incomparable private residence.