Itakeskus underground swimming complexPhoto: Lewis Martin From the country that brought you the world's spookiest children's series, please meet the underground city. Helsinki, Finland's capital, has decided to defeat sprawl by building down instead of out. Incised into the city's bedrock are a swimming pool, a shopping area, a church, a hockey rink, and a data center, not to mention "parking caverns" and a bunch of the city's necessary municipal doodads. An underground shadow city! Seriously, you guys, how is it possible for Finland to be so creepy and cool? Some of the benefits here are obvious -- it reduces …
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Jess Zimmerman is the editor of Grist List.
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