IS-360 “Spherical Tank”, designed by B. Mikova was one of the many tank projects, that had a mono-cycle structure. Project was designed in June 1942, it didn’t generated much interest among the Main Armored Directorate of the Red Army and was shelved. Until now.

"Ein wahrhaft großer Mann wird weder einen Wurm zertreten noch vor dem Kaiser kriechen."
Benjamin Franklin