The document discusses several cathedrals and churches within the Kremlin in Moscow that would have many stories to tell from the tsarist era in Russia. It mentions cathedrals like the Archangel Michael Cathedral, Annunciation Cathedral, and Cathedral of the Assumption, as well as churches like the Church of St. Sergius and the Church of the Mother of God of Kazan. These artistic works were fortunately preserved for future generations despite the challenges of history.