"Mountain of Gems" is the largest project in the history of Russian animation. It was created based on the fairy tales of the peoples of Russia by the Pilot studio under the leadership of Alexander Tatarsky by the best modern animators. There are also series of cartoons in the same style (plasticine “Peoples of Russia”), and individual short films by the author. They are all very different and unlike anything else, well drawn and with wonderful voice acting. Click on the link - it will take you to YouTube. Just be careful: you can get stuck for a long time, switching from one cartoon to another!