The State Tretyakov Gallery is the national treasury of Russian fine art and one of the greatest museums in the world. It is located in one of the oldest directs of Moscow - Zamoskvorechye, not far from the Kremlin. The Gallery's collection consists entirely of Russian art and artists who have made а contribution to the history of Russian art or been closely connected with it. The collection contains more than 180 000 works of painting, sculpture and graphics, created throughout the centuries by successive generations of Russian artists. Russian art works, ranging in date from the 11th to the early 20th century, are on the show in Gallery's historic building on Lavrushinskiy Pereulok. New building of the Tretyakov Gallery at Krymskiy Val houses a unique museum exhibition of national 20th century art. Being built up to the 150 anniversary of the Tretyakov Gallery, an exposition meets all modern requirements of showing contemporary art.The exhibition is opened by the works of Mikhail Larionov, Natalia Goncharova, the artists of the association "Bubnovy Valet", whose creativity marks the beginning of the new Avant-Garde movement in Russia. The world - known artists such as Wassily Kandinsky, Mark Chagall, Kazimir Malevich (the painter of the "Black Square") and artists of neoclassicism are also well represented. The hall with the reconstruction of the well-known exhibition of "OBMOHU" (Association of young artists) of 1921 is devoted to constructivism of the 1920th.The art works featuring "social realism" - an official style of totalitarian era in 1930-50s - are widely shown in the Gallery. Objects, installations, photographs, conceptual art created since 1950 up to now, are also represented as alternative directions of the Soviet art evolution.