The King's Gate that houses the Grand Embassy Historical and Cultural Centre was the key symbol of the city's 750th anniversary marked in 2005. By that date, the building had been restored and handed over to the Museum of the World Ocean. Now the museum offers an exposition dedicated to Peter the Great's Grand Embassy. Apart from that, the museum organises exhibitions and other events here. The King's Gate is decorated with restored bas-reliefs of the rulers who played a major role in Königsberg's life: Ottokar II, Duke of Prussia Albrecht and Friedrich I. Do not miss the sculpture of the Prussian Cat, the keeper of the city keys, which is believed to bring good luck.