This large stone ball rotates from streams of water. Every hour the flow of water changes direction, going down 12 steps. With the change of water flow - the direction of rotation of the ball changes. This is a modern fountain - a clock at the beginning of Malaya Sadovaya Street, which is a continuation of the architectural line of Anichkov Park and Ostrovsky Square. All these buildings, like Rossi Street, leaving the Alexandria Theater, are the fruit of the Russian architect. Translated with Google Translate