newVideoPlayer( {"type":"video","player":"http://www.youtube.com/v/jXNyEiw28D0&hl=en&fs=1&hd=1","customParams":[] ,"width":500,"height":332.5,"ratio":0.615,"flashData":"","embedName":null,"objectId":null,"noEmbed":false,"source":"youtube","wrap":true,"agegate":false} ); Bound by buildings on one side and a harbor on the other, the Finnish capital of Helsinki is pursuing a unique direction for its urban expansion: straight down. Thanks to a cooperatively shallow bedrock, building underground is relatively painless and inexpensive, and already citizens enjoy access to a subterranean swimming complex, shopping area, hockey rink, and more.