On Sunday July 9th Dr. Borkin was invited to return to the cathedral after public hours for a private tour with the cathedral curator Tatiana Kruptsova, historian Diana Tsvetkova and aspirant of spiritual academy Antoniy Muratov to ring the Ceremonial bell used to mark significant events and learn more about this fabulous monument from those people closest to it.
See Dr. Borkin interview here: https://www.youtube.com/watch?v=EFw3n-UVmOM