The Petropavlovskaya Fortress is located on the Zayachy Island in St. Petersburg (Russia). It is an historic center of the city. It was based on May 27, 1703 according to the joint plan of Peter I and a French engineer Lamber. Today fortress is a part of the Museum of history of St. Petersburg. Every day the shot of a signal gun made at 12:00 from Naryshkin bastion of the Petropavlovskaya Fortress. There are a monument to Peter the Great, a Museum of astronautics and rocketry works in the territory of the Petropavlovskaya Fortress. Excursuins and different entertaining events are held here.