CIS leaders attending an informal summit in St. Petersburg on Tuesday morning toured the exposition of the Russian Museum, RIA Novosti reported.

The Russian Museum is the world's largest museum of Russian art, a unique architectural and artistic complex in the historic center of St. Petersburg.

On December 26-27 an informal summit of the CIS takes place in St. Petersburg. On December 26, Prime Minister Nikol Pashinyan participated in the informal meeting of CIS Heads of State.