This is just a concept at this point, but this nuclear power aircraft is designed to carry 5000 passengers and will have a pool, a mall, a gym, events spaces and more, just like some of the best hotels in Vegas. It would stay aloft almost always.

It will be powered by 20 electric engines running from a nuclear plant. Of course, skeptics point out that the nuclear plant necessary doesn’t exist yet.

I would point out that aircraft require a lot of maintenance, including major overhauls at 1000 hour intervals. That means a boatload of expense and ground time pretty much every month.