st. petersburg. mosaic icons on the architectural monument of the church of the savior on spilled blood at sunset

russia saint petersburg capital city peter spb sanktpeterburg nevskiy griboyedov canal cathedral sobor spas krovi church temple christianity orthodoxy architecture resurrection christ old russian fragment mosaic icon details decorated day window wall sunset cityscape outdoor landmark tourism travel historical building museum exterior nobody view savior spilled blood from beautiful masaic icons walls stained-glass windows architectural monument st petersburg