This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Kazankreml map. en Plan of Kazan Kremlin taken by military engineer lieutenant Anton Sociperov in Letter SpasoPreobrazhensky Saviour Transfiguration monastery Letter Troitsky Trinity monastery Letter Church pf snts Kiprian and Iustinia Letter Blagoveshensky Annunciation Cathedral old book author died more than years ago century