The Moscow Kremlin (Russian: Московский Кремль) is a historic fortified complex at the very heart of Moscow, overlooking the Moskva River (to the south), Red Square (to the east) and the Alexander Garden (to the west). It is the best known of kremlins (Russian citadels) and includes four palaces, four cathedrals, and the enclosing Kremlin Wall with Kremlin towers. The complex serves as the official residence of the President of Russia.