In 1552 on the site of the common grave of soldiers killed while storming the city, Ivan the Terrible ordered to build the Monastery in the name of Uspeniya Presvyatoy Bogoroditsy (Assumption of the Blessed Virgin Mary). Due to frequent flooding, the church was moved to a higher point, the Zilantov mountain. The idea of creating a monument obelisk at the burial site came up much later. The monument in the form of a truncated pyramid, which is twenty meters high, was laid on June 29, 1813; however, the construction was delayed for almost 10 years. Every year on October 2 the church holds a divine service. During the Soviet period it was closed. Legends attribute the memorial church to underground tunnels leading to the Kremlin, because it is the very point where Ivan the Terrible had his tent in the 16th century, and it was a common practice that time to make underground tunnels, in case of a surprise attack. Perhaps a passage existed indeed and there is some evidence that the Emperor Nicholas I, who visited Kazan in 1836, supposedly examined it personally.