Before the revolution, tower clocks were installed on bell towers in almost every province and region of the Russian Empire. At the moment, on the territory of modern Russia alone, we can say with confidence about the presence of earlier tower clocks on about 600 bell towers. Thanks to cooperation with the museums of the country, every year the study reveals new data on clocks and bell towers. At the moment, information has been collected on the clocks and bell towers of all regions of the Russian Federation, for example: