The artist Johannes Brus created this monument in 1992 on the square named after Andrei Dmitrievich Sakharov. Four massive columns are made of industrial presses. It is impossible not to feel their heaviness and pressure. They allegorically show the atmosphere of enormous public pressure and persecution created by the Soviet regime concerning Andrei Sakharov, the defender of human rights in the former USSR. Amid these columns is a blue rider on a strong horse. This horseman is not combined with either color, shape, or texture with the surrounding rusty pillars. It tells us how human rights defenders look like in totalitarian regimes. But the horse carries not one rider but two. These riders symbolize "there is safety in numbers" two are joining by one, then three by one, and so else, until a national movement appears.