Many of the soccer ball factories in Mongui look like this, with no indication of what is going on inside.
A Soccer Ball Factory in Mongui, Colombia
About the author: I am the founder and editor of Vagabond Journey. He has been traveling the world since 1999, through 90 countries. I am the author of the book, Ghost Cities of China, and contributes to The Guardian, Forbes, Bloomberg, The Diplomat, the South China Morning Post, and other publications.