St. Peter-and-Paul's Fortress was conceived by Peter I during the Northern war with Sweden that lasted from 1700 to 1721. Peter highly rated return of originally Russian lands, occupied by the Swedes, along the Neva and the Baltic. He understood that exit to the Baltic sea would foster reinforcement of the power of Russia and development of links with the Western Europe.
St. Peter-and-Paul's Fortress is one of the most interesting architectural and fortification monuments in Europe; for the first time in Russia system of ramparts was used at its construction. This fortress is the first construction, from which the city of St. Petersburg began.
Since the times of Peter the Great there has been the famous political prison of the Russian empire, "the Russian Bastille". Exhibition at the Trubetskoy rampart of the fortress tells about its history and life of its prisoners, among them - the Decembrists and well-known writers.
St. Peter-and-Paul's Cathedral built to the project of D.Trezzini is an expressive monument of Peter's epoque architecture; St. Peter-and-Pauls's fortress is a family vault of the Russian emperors of the Romanov dynasty and their family members, beginning from Peter the Great to the last Russian tsar Nicholas II.
Needle of the cathedral's bell-tower reaches 122,5 metres, and the cathedral is not only a semantic centre of the city, but also one of its highest landmarks.