The Finnish National Theatre was founded in 1872 and it is the oldest Finnish-language professional theatre in Finland. The building on the photo hosts the National Theatre and was completed in 1902, It was designed by Onni Tarjanne in the National Romantic style, inspired by romantic nationalism. The statue in front is the Finnish national romantic writer Aleksis Kivi. The theatre is located on the northern side of the Helsinki Central Railway Station Square.
We haven't been inside, but I would love to have a further look there!