The Peter and Paul Fortress is architectural and historical center of Saint-Petersburg. The fortress was designed to protect the Neva lands that were won from the Swedes during the Northern War (1700 - 21). Its powerful stone walls rising almost out of the water, and the cathedral spire soaring into the skies, make up a unique view opening from afar as a part of the wide Neva panorama. 

The Peter and Paul Fortress was put up for fortification purposes; however, it had never been used as such. Beginning from 1718 it was turned into a prison for political convicts. Since 1924 Peter and Paul Fortress has been a museum. 

For a long time the cathedral had performed the functions of the museum of Russian military glory, where enemy banners, keys of the cities and fortresses captured by Russian troops were kept. In the early 20th century all the trophies were transferred to museums. The cathedral now holds replicas of captured Swedish and Turkish banners. The building, topped with a dome and a bulbous cupola is perceived as an integral part of the cathedral. In front of the entrance a fence was put up, designed on the model of the Summer Gardens railing.

On top of the cathedrals’ gilded spire stands a magnificent golden angel holding a cross. This weathervane is one of the most prominent symbols of St Petersburg, and at 404 feet tall, the cathedral is the highest building in the city.

Other buildings in the fortress include the City History Museum and the Mint, one of only two places in Russia where coins and medals are minted.