Midsummer in Vallisaari Midsummer in Vallisaari Share Traditional Midsummer celebrations on the island of Vallisaari in the 1950s. Show on map Photographer Helsinki City Museum / Taisto Haimakainen Finna.fi record Open in Finna(Link leads to external service) Formats Image Photo Authors Haimakainen, Taisto Copyrights CC BY 4.0 Buildings Helsinki City Museum