Uploaded July 2018 | Updated September 2026, 2 hours ago

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The UNESCO World Heritage site Grimeton Radio Station in south-western Sweden is an early example of transatlantic radio communications. The enormous antennae and massive generator had enough power to send longwave radio signals directly across the Atlantic to the central processing node in New York. Despite being built in the 1920s, it's actually still functional though is only used on a few special days each year. Let's check it out!

For more Swedish World Heritage sites:
youtube.com/playlist?list=PLT9964WmoqNhUFMouY7HNhZif7oxF5lUv

For more technology World Heritage sites:
Volklingen Ironworks: youtu.be/Isu3flfUB88
Watch-Making Town of La Chaux-de-Fonds: youtu.be/hp3UmYkaa-k
Vizcaya Bridge: youtu.be/IT0QngLe5R0

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Music: Bensound.com - Happiness
Thumbnail image via Wikimedia Commons, by Chrumps - Own work, CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=42756712