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.

Departure
Learn what it takes to get a million people off the ground – from building the world’s biggest passenger plane to controlling the flow of passengers through the busiest airport on the planet to the perils of takeoff in the coldest city on Earth.