The State Tretyakov Gallery is a prominent art museum located in Moscow, Russia. Founded in 1856 by the merchant Pavel Tretyakov, it houses an extensive collection of Russian fine art, featuring works from the 11th century to the early 20th century. The gallery is renowned for its masterpieces by famous artists such as Ivan Aivazovsky, Ilya Repin, and Kazimir Malevich. The museum consists of two main buildings: the original Tretyakov House and a modern extension designed by architect Raimund Abraham. Visitors can explore over 130,000 works of art, making it one of the largest collections of Russian art in the world. The gallery plays a vital role in preserving and showcasing Russia's artistic heritage.