Helsinki-päivä Ritarihuoneella 1975 Helsinki-päivä Ritarihuoneella 1975 « Back Share icon Share Share in Facebook Share in Linkedin Share in Twitter Send as an email On Helsinki Day, it has been possible to explore places that are not normally open to the public. In 1975, the residents' association of Kruununhaka organized an open house day at the House of Nobility. Location marker icon Show on map Used in articles Helsinki Day – the City of Helsinki's birthday Article Article Go to content Photographer Helsinki City Museum / Eeva Rista Period 1975 Finna.fi record (The link opens in a new tab.) Open in new window(Link leads to external service)