I'm planning a trip to Helsinki, what information is available? 
 Great sounds like fun! There is a metro station that opened in 1982 and is the only metro system in Finland. 
 Good to know! Any more transport information? 
 Yes, besides the Helsinki Central Railway Station, there is also many international ports, and Finland's largest airport in Helsinki. 
 Great, and what about the geography? 
 Winter is normally warmer in the north of Finland, and snow season is shorter in the capital, partly because of the urban heat island effect. 
 Are there any sites or natural features around Helsinki? 
 I don't know about natural features, but can share that the city of Helsinki is a highly populated area with over one million inahbitants in a northernmost urban area. 
 Thanks, any other interesting facts about Helsinki? 
 Yes the population density is 2,739.36 people per square kilometers, which is the most densley populated Finnish city. 
 Thanks for the information, it's been very helpful! 
 You're very welcome!
Helsinki