The Holy Cross Church, also the Church of the Exaltation of the Cross of the Lord, is one of the oldest Orthodox churches in Irkutsk. Performed the functions of the cathedral in 1929-1936 and 1948-1991. The building is built in the style of the Siberian baroque.

“The virtuosity of the decoration of the temple with comparatively meager means is truly amazing.Washing and stacking the brick and indeed oblique, scraping the columns and balyasy.i and arranging the cunningly woven cornices, the architects achieved a striking effect when the brick patterns gave the impression of rich fabrics and artfully woven carpets.”