Five ways in which you can observe if the Earth is flat or round yourself. Interview with a Terraplanist, channel of Wikiseba:
   • Entrevista a un Terraplanista Video C...  

Peopole who have crossed Antarctica: https://www.wired.com/2016/02/people-...
Boat emerges from horizon:    • Ship (Severnaya Zemlya) coming into v...  

Script: Tonatiuh Moreno
Illustrations: Ruy Fernando Estrada, Sandra Cárdenas, Sergio Rivera
Voice: Javier Lacroix
Music: Mary Camarena and Jorge Verdín

Additional music:
Learning is Fun, Doug Maxwell