Among the city's attractions stands out "card" Kazan - a view of Millennium Square and the Kremlin from Kazanki : " Flying Saucer " Kazan circus and are framed by the Kremlin walls Syuyumbike Tower , Cathedral of the Annunciation and the Kul-Sharif Mosque form the spectacular silhouette, became a symbol of the city .A characteristic feature of Kazan - preserved largely intact until the 2000s, the architectural ensemble of the historic city center and Old Tatar settlement ) . It is formed by the