This unique map is located in the geological museum of Saint-Petersburg. It is made from gemstones in the Florentine and Russian mosaic technique. 45 000 gemstones 4-6 mm (0.15-0.23 inches) thick were used to make the panel of the map.
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This splendid mosaic is a monument to the imperial style of the former Soviet Union.
The Communist Party of the USSR decided to celebrate its twentieth anniversary by making a huge mosaic panel from gemstones.
"The map of The USSR industrialization" is the whole USSR in scale 1:1 500 000. The size of the map os twenty seven square meters, it is made from 50 000 fragments. The gemstones were being chosen to match the colors and sizes.
The great construction sites were all marked by gemstones.
The whole map was made in the shortest possible period of time - eleven months. About 700 stonecutters were working day and night. Soon it received the Grand Prix at the World Exhibition in Paris, then a gold medal in New York.