Read and complete the sentence with the correct part.

On the opposite side of the cathedral, there is the Mint building, constructed in the time of Paul I by architect A. Porto. Coinage was moved to the fortress as the most protected part of the city in the time of Peter I. The Peter and Paul Fortress has never directly participated in any fighting. From the very beginning of its existence it was used as a political prison. Since 1924 the Peter and Paul Fortress ...

• has been a part of the Museum of the History of St. Petersburg.
• is one of the main symbols of the city.
• was completed after the death of the emperor, in 1733.
• the history of the fortress.
• as the day of the birth of St. Petersburg.
• that are located at the corners.
• had been conquered by the Neva River.
• the joint plan of Peter I and French engineer Joseph-Gaspard Lambert de Guerin.
• fighting the Northern War against Sweden.
• was designed by D. Trezzini, has remained since the time of Peter I.