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Estonia, city of Tartu (German: former Dorpat, also Dörpt): Memorial concrete sculpture for Wilhelm von Struve and Struve Geodetic Arc beneath Tartu Astronomical Observatory, UNESCO World heritage sight
Estonia, city of Tartu (German: former Dorpat, also Dörpt): Memorial concrete sculpture for Wilhelm von Struve and Struve Geodetic Arc beneath Tartu Astronomical...
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