In the evening, I came to Helsinki Central Railway Station to take the overnight train to Rovaniemi. I set off for the Arctic Circle. The building of the railway station is very distinctive. The center is a large semicircular vault design. The ancient brick wall makes the station more chronological. European train stations are open, no ticket check and security check can enter and exit the platform, there will be conductors on the train ticket. The platform display will display the flight information, find the platform of the corresponding train platform.