alexander palace anichkov palace baroque battle of chesma battle of poltava beloselsky-belozersky palace bluff catherine ii of russia catherine palace catherinehof chess elizabeth of russia france gatchina palace geographic coordinate system germany gilding grand duke alexei alexandrovich of russia great northern war gulf of finland historic centre of saint petersburg and related groups of monuments hydrofoil italy jacob philipp hackert kolpino kotlin island krasnoye selo kronstadt lacquer le blanc-mesnil livorno louis xiv of france mannerism marble palace mariinsky palace mikhail kozlovsky mikhailovsky palace moscow kremlin nicholas i of russia nicholas palace palace of versailles pavlovsk pella palace peter i of russia poland pump ropsha russia russian language saint petersburg saint petersburg state university samson sestroretsk siege of leningrad sopot soviet union strelna sweden tauride palace tsarskoye selo umbrella versailles vladimir palace wikimedia commons winter palace world heritage site yelagin palace