How Do They Do It? S12E20 — Power Tunnel, Pizza Ovens, Playhouses

7.7

How Do They Do It?•Season 12•Episode 20

Power Tunnel, Pizza Ovens, Playhouses

7.7/10 · 12 votesOct 1, 201522 min

Ranked #1 of 20 in Season 12•+0.6 vs season avg

How do they build tunnels to prevent blackouts in one of the world's biggest cities? How do they turn millions of hectares of pine forest into perfect pieces of timber?

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Power Tunnel, Pizza Ovens, Playhouses

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Episode Summary

"Power Tunnel, Pizza Ovens, Playhouses" is episode 20 of How Do They Do It? season 12. It scored 7.7/10 from 12 votes, ranking #1 of 20 episodes this season (season average 7.1). It aired on October 1, 2015.

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