Спас Вседержитель
The exterior façade was designed by Professor Gotthold Riegelmann and is reminiscent of Rhenish Imperial cathedrals. The interior design and decoration however are reminiscent of the Hagia Sophia. The interior consists of a mixture of Byzantine and Art Nouveau. The theme of Christ the Redeemer is ubiquitous throughout the church, and culminates in the Christ Pantocrator mosaic of the apse vault.