New Orleans Arcology Habitat is a futuristic-structure, that would sit on the Mississippi river. Deemed a 'floating city' because it could house 40,000 residents, and comes equipped with shops, schools, food courts, theaters, etc. The metropolis would cover 30 million square feet and stand 1,200 feet high-- designed to withstand a category 5 hurricane. No date has been set for construction, but plans are in the works.