The history of Kazan Cathedral is full of tragedy and heroism, reflecting everything that has happened in Russia over the last two hundred years. Built by a former serf at the behest of the emperor, it became one of the largest Orthodox churches near Nevsky Prospect. Here was kept one of the most revered icons in Russia. In the early 19th century, victory over Napoleon was celebrated here, while in the 1920s the cathedral was looted and turned into a museum of the history of atheism. In the 1990s, it once again became the cathedral of St. Petersburg.

In the 18th century, a church dedicated to the Nativity of the Blessed Virgin Mary, created by Zemtsov, stood on its site. In 1737, a copy of the miraculous icon of the Mother of God from Kazan was placed in it. Emperor Paul I was married in this church, and it is thanks to him that the cathedral exists in its modern form. Paul, an ambitious and stubborn man, sought to establish relations with the Vatican, but unsuccessfully. In response to the Pope's refusal to recognize him as the Grand Master of the Order of Malta, Paul decided to build a cathedral that would surpass St. Peter's Basilica in the Vatican.

In 1799, a competition was announced for the cathedral's design, but none of the proposed options satisfied the emperor. His attention was drawn to the project of the young architect Andrei Voronikhin, presented by Count Stroganov. Voronikhin, a former serf, received an education thanks to Stroganov's support.

The cathedral, built in the style of Russian Empire, became a true architectural wonder. Its construction lasted 10 years, and in 1811 it was solemnly consecrated. Voronikhin received the Order of St. Anna and a pension for his work.

The cathedral combines features of a Catholic church and an Orthodox church. It is faced with Pudost limestone, which changes color depending on the lighting. Inside the cathedral are 56 columns made of pink Finnish granite, and its dome, with a diameter of over 17 meters, was the first in architectural history to be constructed using a metal framework.

Kazan Cathedral is also a place of military glory. Here were kept the banners captured in the Patriotic War of 1812, as well as monuments to Kutuzov and Barclay de Tolly. During the Great Patriotic War, the defenders of Leningrad gathered here to muster their courage.

After the October Revolution, the cathedral was looted, and a Museum of the History of Religion and Atheism was established within its walls. Only in the late 1980s did its revival begin. Today, Kazan Cathedral once again serves as a center of religious life in St. Petersburg and one of the city's main attractions.