Kremlin n. : The citadel of a town or city; especially, the citadel of Moscow, a large inclosure which contains imperial palaces, cathedrals, churches, an arsenal, etc.

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Taxonomy
the Kremlin, Moscow, Moscow Kremlin, cathedrals, Palace, churches, Kremlin Wall, Kremlin, Museums, Russia, Terem Palace, residence, Tsars, towers, reign, square, free encyclopedia, citadel.

Defination from the web:
Kremlin is often used as a metonym to refer to the government of the Soviet Union (1922–1991) and its highest members (such as ... Dmitri's son Vasily I resumed construction of churches and cloisters in the Kremlin. ...