A unique UNESCO Heritage site
— Tanmaya Lal (@Tanmaya_Lal) October 5, 2023
Jēkabpils in Latvia 🇱🇻
Struve Geodetic Arc
2,800 km across 10 countries
34 stations
Great scientific triangulation survey done 200 years ago to determine shape of earth & linked to theory that earth is flatter along poleshttps://t.co/6E1ZY7tBUI pic.twitter.com/Bc1GM06n97
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All About World Heritage Sites 