The Kremlin is a mysterious place. The filmmakers studied ancient documents, engravings and maps, and conducted their own measurements to compare with what they learned. Using neural networks, they revived portraits of historical figures whose names are still well known today. The film crew collaborated with scientists who have been restoring parts of the Kremlin that no longer exist, using modern technology. In our film you will see the most detailed computer reconstructions of its buildings, fortress walls and temples. The information obtained is unique, and all the answers to the questions can be found in the film "The unknown Kremlin. Stories, legends, facts."