Obninsk, located in Russia's Kaluga Oblast, is renowned for being the first city in the world to be powered by nuclear energy. Situated approximately 100 kilometers southwest of Moscow, it plays a significant role in scientific research and development, particularly in the fields of nuclear technology and education. With a population of around 107,392, Obninsk combines a rich history with modern advancements, making it an important hub for innovation and industry in Europe.

Founded in 1956, Obninsk was established as a center for nuclear research and development. It gained international recognition when it became the first city to receive electricity from a nuclear power plant in 1954.

Obninsk's economy is primarily driven by its nuclear research facilities, educational institutions, and various industrial enterprises. Key industries include nuclear engineering, electronics, and IT, contributing to the city's reputation as a center for scientific advancement and technological innovation.

Visitors to Obninsk can explore its unique blend of history and modernity, with attractions such as the Obninsk Nuclear Power Plant and the local science museum. The city's parks and cultural centers also provide opportunities for leisure and relaxation, making it an appealing destination for those interested in science and technology.