City in the Sky

Arrival

There are around a million people airborne at any one time. But what goes up must come down - and getting passengers safely back to earth depends on complex global networks and some astonishing technology.

Air Date 2/22/17

Explore a unique metropolis-a midair "city" composed of nearly a million people on flights that crisscross the world daily. Meet the hidden army working to keep the city aloft and uncover the exceptional engineering and technology that make it work.
Upcoming Air Dates
This show is not scheduled to air soon.

Introducing

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