SocietyHelsinki goes undergroundTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoSociety12/13/2018December 13, 2018Finland's capital is going underground, as there's little space to build above ground. There are plans to construct shopping centers, train stations and museums. Conditions below ground are often ideal, with constant temperatures and low humidity.https://p.dw.com/p/39q1wAdvertisement