Struve Geodetic Arc

Finland, Norway, Russia, Ukraine, Maldova, Estonia, Belarus, Sweden, Latvia, Lithuania 

Missing: Lithuania

The Struve Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through 10 countries and over 2,820 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, i.e. a drilled hole in rock, iron cross, cairns, or built obelisks. Source whc.unesco.org

Latvia: Sestukalns and Jekabpils

Thanks to Ms Nadia for sending this card from Spain.

Moldova: Rudi Village

Thanks to Mr Tiago for send this this card from Portugal.

Estonia: Tartu Observatory

Thanks to Mr Patrik.

Norway: Hammerfest

Thanks to Jo Heggland.

Finland: Oravivuori

Thanks to Ms Sini

Finland: Alatornion Kirkko Church

Thanks to Ms Sini

Russia: Gogland Island

Thanks to Mr Vadim

Ukraine: Staraya Nekrasovka

Thanks to Ms Olesya

Belarus: Ossownitza

Thanks to Ms Katya

Belarus: Various Points

Thanks to Ms Lisa.

Sweden: Perra Vaara, Haparanda

Thanks to Ms Merja Deb. Bottom row (L-R) third box is Struve Geodetic Arc.

Denmark: Rjukan-Notodden Industrial Heritage Site

Located in a dramatic landscape of mountains, waterfalls and river valleys, the site comprises hydroelectric power plants, transmission lines, factories, transport systems and towns. The complex was established by the Norsk-Hydro Company to manufacture artificial fertilizer from nitrogen in the air. It was built to meet the Western world’s growing demand for agricultural production in the early 20th century. The company towns of Rjukan and Notodden show workers’ accommodation and social institutions linked by rail and ferry to ports where the fertilizer was loaded. The Rjukan-Notodden site manifests an exceptional combination of industrial assets and themes associated to the natural landscape. It stands out as an example of a new global industry in the early 20th century.

Source: unesco.whs.org

Inscribed: 2015

Thanks to Ms Doris who was visiting Norway.
 

Norway: Røros Mining Town and the Circumference

Thanks to Ms Sini of Finland.

Norway: Rock Art of Alta

Thanks to Joey of Norway.

Norway: Bryggen

Thanks to Kerstin.

Norway: Urnes Stave Church

Thanks to Joey.

Norway: West Norwegian Fjords – Geirangerfjord and Nærøyfjord

Thanks to Ms Catherina.