How Do They Do It? Season 14 Episode 4 Helmets, Tea, District Heating 2017
7.3/10 by 32 users
How do they harvest and treat the world's most expensive tea? Plus, how does the Siekierki power plant of Warsaw, Poland heat half the city's homes?
- Released: 2017-01-13
- Runtime: 22 minutes
- Genre: Documentary
- Stars:
- Director:
