From www.youtube.com - January 23, 2017 11:36 PM

"Colored printed sections showing the map of the world are cut to shape then pasted onto the surface of the globes and a protective coat of varnish is added. Narrator recounts the fact that lots of the workers have been there for over 30 years and quips: 'While the rest of the mankind does its best to blow the world up, they like building a new one.'"