Russia

Moscow is the capital and largest city of Russia, standing on the Moskva River in Central Russia. It has a population estimated at over 13 million residents within the city limits, over 19.1 million residents in the urban area, and over 21.5 million residents in its metropolitan area.

Saint Petersburg, formerly known as Petrograd (Петроград) and later Leningrad (Ленинград), is the second-largest city in Russia, after Moscow, the nation's capital. Situated on the Neva River at the head of the Gulf of Finland on the Baltic Sea, its area of 1,439 square kilometers (556 sq mi) renders it the smallest administrative division of Russia by area.

Novosibirsk is the largest city and administrative centre of Novosibirsk Oblast and the Siberian Federal District in Russia. As of the 2021 census, it had a population of 1,633,595, making it the third-most populous city in Russia after Moscow and Saint Petersburg.

Yekaterinburg, alternatively romanized as Ekaterinburg and formerly known as Sverdlovsk (1924–1991), is a city and the administrative centre of Sverdlovsk Oblast and the Ural Federal District, Russia. The city is located on the Iset River between the Volga-Ural region and Siberia, with a population of roughly 1.5 million residents, up to 2.2 million residents in the urban agglomeration.

Kazan is the capital and largest city of Tatarstan, Russia. The city lies at the confluence of the Volga and the Kazanka rivers, covering an area of 425.3 square kilometres, with a population of over 1.3 million residents, and up to nearly 2 million residents in the greater metropolitan area.

Nizhny Novgorod, colloquially shortened to Nizhny and from 1932 to 1990 known as Gorky, is both a city and the administrative centre of Nizhny Novgorod Oblast and the Volga Federal District in Russia. The city is located at the confluence of the Oka and the Volga rivers in Central Russia, with a population of over 1.2 million residents, and roughly 1.7 million residents in the wider urban area.

Chelyabinsk is the administrative center and largest city of Chelyabinsk Oblast, Russia. It is the seventh-largest city in Russia, with a population of over 1.1 million people, and the second-largest city in the Ural Federal District, after Yekaterinburg. Chelyabinsk is located to the east behind the south part of the Ural Mountains and runs along the Miass River.

Samara, formerly known as Kuybyshev (1935–1991), is the largest city and administrative centre of Samara Oblast in Russia. The city is located at the confluence of the Volga and the Samara rivers, with a population of over 1.14 million residents, up to 1.22 million residents in the urban agglomeration, not including Novokuybyshevsk, which is not conurbated.

Omsk is the administrative center and largest city of Omsk Oblast, Russia. It is situated in southwestern Siberia and has a population of over one million. Omsk is the third largest city in Siberia after Novosibirsk and Krasnoyarsk, and the twelfth-largest city in Russia.

Rostov-on-Don, or simply Rostov, is a port city and the administrative centre of Rostov Oblast and the Southern Federal District of Russia. It lies in the southeastern part of the East European Plain on the Don River, 32 kilometers (20 mi) from the Sea of Azov, directly north of the North Caucasus. The southwestern suburbs of the city lie above the Don river delta.