The building number 5

In this picture is Ateneum. "Ateneum Art Museum is the national gallery of Finland. Its purpose is to care for, build up, study and present the most important art collection in Finland. Through its exhibitions and other activities, Ateneum promotes knowledge and appreciation of the visual arts and our cultural heritage.
Even the Ateneum building itself, designed by architect Theodor Höijer and inaugurated in 1887, is something of a national monument."