World Heritage
Struve Geodetic Arc
The Struve Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea through 10 countries and over 2820 km These are points of a survey carried out between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve which represented the first accurate measuring of a long segment of a meridian This helped to establish the exact size and shape of the planet and marked an important step in the development of earth sciences and topographic mapping It is an extraordinary example of scientific collaboration among scientists from different countries and of collaboration between monarchs for a scientific cause The original arc consisted of 258 main triangles with 265 main station points The listed site includes 34 of the original station points with different markings ie a drilled hole in rock iron cross cairns or built obelisks
Norway, Estonia, Sweden, Ukraine, Lithuania, Belarus, Finland, Russian Federation, Republic of Moldova, Latvia -