This is one place you have to visit in Moscow . The wealthy Tretyakov brothers created this temple of art, which many consider the greatest art gallery in Russia. It boasts a wonderful collection of icons, including ones by Rublev, but also more modern works by Repin, Chagall and many others. Warning: you will spend a lot of time in the gallery.
The State Tretyakov Gallery (Russian: Государственная Третьяковская Галерея, Russian: ГТГ) is an art gallery in Moscow, Russia, the foremost depository of Russian fine art in the world.
The gallery’s history starts in 1856 when the Moscow merchant Pavel Mikhailovich Tretyakov acquired works by Russian artists of his day with the aim of creating a collection, which might later grow into a museum of national art. In 1892, Tretyakov presented his already famous collection to the Russian nation.