Obninsk (Russian: О́бнинск) is a city in Kaluga Oblast, Russia, located on the bank of the Protva River 100 kilometers (62 mi) southwest of Moscow and 80 kilometers (50 mi) from Kaluga. Obninsk is one of the major Russian science cities. In 2000, it was awarded the status of the First Science City of Russia. The city is home to twelve scientific research institutes. Their main activities are nuclear power engineering, nuclear methods and radiation technology, technology of non-metallic materials, medical radiology, meteorology and ecology and environmental protection!
The first nuclear power plant in the world for the large-scale production of electricity opened here on June 27, 1954.
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Definitive Issue. Kremlins "Astrakhan Kremlin" - Issued: 01-10-2009
Coat of Arms of the City of Sergiev Posad - Issued: 24-06-2014
EUROPA Stamps "Postal Vehicles" - Issued: 26-04-2013