The exhibition "1872 Peter the Great's Anniversary in Moscow" coincides with the 150th Anniversary of the Polytechnic Exhibition, which marked the Emperor’s 200th Anniversary and became the most outstanding and grandiose project ever undertaken within the Moscow Kremlin. In 1872, for the first time in history, the Kremlin, its surrounding gardens and the embankment were transformed into a real city of science, technology and art. Its plan, opening the exhibition in the state anteroom of the Armoury Chamber today, shows the scale of this first pavilion-type exhibition in Russia.