Title: Soviet Union
Content:  Union, with Moscow as its capital within its largest and most populous republic, the Russian SFSR. Other major urban centers were Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk (Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR) and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over 22402200 km2, and spanning eleven time zones. The Soviet Union had its roots in the October Revolution of 1917 when the Bolsheviks, headed by Vladimir Lenin, overthrew the Provisional Government that had earlier replaced the house of Romanov of the Russian Empire. They established the Russian Soviet Republic, the world's first constitutionally guaranteed socialist 
Title: Federal cities of Russia
Content:  A city of federal importance  or federal city in Russia is a city that has a status of both an inhabited locality and a constituent federal subject. There are three federal cities: Moscow, Saint Petersburg, and Sevastopol. Two of them are the largest cities in the country: Moscow is the national capital and Saint Petersburg is a previous Russian capital and important port city in the Baltic Sea. Sevastopol is the newest federal city, located in the disputed region of Crimea, which was annexed by the Russian Federation in 2014 but is recognised as Ukrainian territory by most of the international community. 
Title: Summer capital
Content:  Following Russia's loss of the traditionally popular resorts of the Crimea (transferred away from the Russian SFSR to the Ukrainian SSR in 1954 by Nikita Khrushchev), Sochi emerged as the unofficial summer capital of the country. Additionally, Sochi has also served as the location for the signing of many treaties, especially those between the Georgian, separatist Abkhazian, and separatist South Ossetian governing authorities.
Title: Yekaterinburg
Content:  Yekaterinburg, alternatively romanized Ekaterinburg, formerly known as Sverdlovsk (Свердловск, 1924–1991), is the largest 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. Yekaterinburg is the fourth-largest city in Russia, the largest city in the Ural Federal District, and one of Russia's main cultural and industrial centres. Yekaterinburg has been dubbed the "Third capital of Russia", as it is ranked third by the size of 
Title: Administrative centre
Content:  In Russia, several million-plus cities in federal districts have the official status of an administrative center: Moscow (as the main city of the Central Federal District), Vladivostok, Volgograd, Yekaterinburg, Nizhny Novgorod, Novosibirsk, Pyatigorsk, Rostov-on-Don and St. Petersburg. The main cities of regions and municipal districts are also called unofficially the administrative center or simply the center. The only exception to this rule is the republics, for which the term "capital" is used to refer to the seat of government. The capital of Russia is also an entity to which the term "administrative centre" does not apply.
Title: Kyiv
Content:  century. In 1918, after the Ukrainian People's Republic declared independence from Soviet Russia, Kyiv became its capital. From 1921 onwards Kyiv was a city of Soviet Ukraine, which was proclaimed by the Red Army, and, from 1934, Kyiv was its capital. The city was almost completely ruined during World War II but quickly recovered in the postwar years, remaining the Soviet Union's third-largest city. Following the collapse of the Soviet Union and Ukrainian independence in 1991, Kyiv remained Ukraine's capital and experienced a steady influx of ethnic Ukrainian migrants from other regions of the country. During the country's transformation to a market economy and electoral democracy, Kyiv has continued to be Ukraine's largest and wealthiest city. Its 
Title: Ukrainian Soviet Socialist Republic
Content:  of Kharkov served as the republic's capital. However, the seat of government was subsequently moved in 1934 to the city of Kiev, Ukraine's historic capital. Kiev remained the capital for the rest of the Ukrainian SSR's existence and remained the capital of independent Ukraine after the breakup of the Soviet Union. Geographically, the Ukrainian SSR was situated in Eastern Europe to the north of the Black Sea, bordered by the Soviet republics of Moldavia, Byelorussia, and Russia. The Ukrainian SSR's border with Czechoslovakia formed the Soviet Union's westernmost border point. According to the 1989 Soviet Census, the republic had a population of 51,706,746 inhabitants, which fell sharply after the breakup of the Soviet Union.
Title: Saint Petersburg
Content:  culturally associated with the birth of the Russian Empire and Russia's entry into modern history as a European great power. It served as a capital of the Tsardom of Russia and the subsequent Russian Empire from 1713 to 1918 (being replaced by Moscow for a short period of time between 1728 and 1730). After the October Revolution in 1917, the Bolsheviks moved their government to Moscow. Saint Petersburg is known as the "Cultural Capital of Russia," and received over 15 million tourists in 2018. It is considered an important economic, scientific, cultural, and tourism centre of Russia and Europe. In modern times, the city has the nickname of the "Northern Capital" and serves as a home to some federal government 
Title: Yekaterinburg
Content:  During the 1991 coup d'état attempt, Sverdlovsk, the home city of President Boris Yeltsin, was selected by him as a temporary reserve capital for the Russian Federation, in case Moscow became too dangerous for the Russian government. A reserve cabinet headed by Oleg Lobov was sent to the city, where Yeltsin enjoyed strong popular support at that time. Shortly after the failure of the coup and subsequent dissolution of the Soviet Union, the city regained its historical name of Yekaterinburg on 4 September 1991. However, Sverdlovsk Oblast, of which Yekaterinburg is the administrative centre, kept its name. In the 2000s, an intensive growth of trade, business, and tourism began in Yekaterinburg. In 2003, Russian President Vladimir Putin and German Chancellor Gerhard Schröder negotiated in Yekaterinburg. On 15–17 June 2009, the SCO and BRIC summits were held in Yekaterinburg, which greatly improved the economic, cultural, and tourist situation in the city. On 13–16 July 2010, a meeting between Russian President Dmitry Medvedev and German Chancellor Angela Merkel took place in the city. In 2018, Yekaterinburg hosted four matches of the 2018 FIFA World Cup and will become the host city for the 2023 Summer Universiade.
Title: Samara
Content:  In 1935, Samara was renamed Kuybyshev in honour of the Bolshevik leader Valerian Kuybyshev. During World War II, Kuybyshev was chosen to be the alternative capital of the Soviet Union should Moscow fall to the invading Germans, until the summer of 1943, when everything was moved back to Moscow. In October 1941, the Communist Party and governmental organisations, diplomatic missions of foreign countries, leading cultural establishments and their staff were evacuated to the city. A dugout for Joseph Stalin known as "Stalin's Bunker" was constructed but never used. To mark its role as wartime national capital a special Revolution Day parade was held at the city's Kuybyshev Square on November 7, 1941, and since 2011 has been remembered in an annual military parade organised by the city government. As a leading industrial 

Question: What is the capital of Soviet Union?
Answer: Moscow.
Moskva.
Moscow, Russia.
Moskva Federal City, Russia.
Moscow, USSR.
Moskva, Russia.
City of Moscow.
Moscow, Russian Federation.
Moscow, Soviet Union.
Moscow, Russian SFSR.
Muscovite.
Moscovite.