The Church of the Exaltation of the Holy Cross is a Roman Catholic church in the city of Kazan, Tatarstan, Russia, under the Diocese of Saratov.
The first modern Catholics came to Kazan in the eighteenth century and were mainly of German origin. In 1835, the first parish was founded by Polish priests, and its parishioners gathered in private homes or temporary structures. The Catholic population, mostly of Polish origin, increased steadily, and the city of Kazan ultimately granted permission to build the church in 1855. Permission to build the church came with the conditions that the church would not stand out from the surrounding buildings and would not display a strong traditional Roman Catholic architectural character.
Wikipedia https://en.wikipedia.org/wiki/Church_of_the_Exaltation_of_the_Holy_Cross,_Kazan
Coordinates 55°46'58.747" N 49°7'39.091" E