Answer:
Mention sauna and most people think of Finland. Despite a population of just over 5 million people, Finland has an impressive 3 million saunas to share between them — far outnumbering their cars — while ‘Finnish saunas’ are now found in gyms and spas almost everywhere on Earth. No one actually knows where the first saunas were built, but the tradition is thought to originate somewhere in northern Europe around 2,000 BC and has remained an important part of cultural life to this day in countries including Estonia, Latvia, and Russia, as well as Finland.
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