Finland builds bomb shelters with pools, saunas, churches and playgrounds for nuclear apocalypse

Finland is building bomb shelters equipped with pools, saunas, churches, and playgrounds in case of nuclear apocalypse or armed attack on the country. The shelter system is protected by steel doors capable of withstanding blast waves and repelling chemical, biological, or nuclear threats. The bunkers can simultaneously accommodate about one million people, although Helsinki has a population of around 689,000.