How Do They Do It?

Season 9 Episode 15: Tequila, Steam-Powered Megacity

How do they produce tequila from cactus plants in Mexico? How does New York City run on steam? How do they produce soft ice cream?

Genre:

Documentary

Seasons:

17

Episodes:

287

Quality:

HD

Status:

Returning Series

First Air:

2006

IMDb:

7.6