The diorama museum "The Great Stand on the Ugra River" is the first museum complex in Russia dedicated to the military campaign of 1480. It was created thanks to the initiative and efforts of the Kaluga St. Tikhon's Monastery. This unique museum tells the story of the victory of the Russian army under the command of Grand Duke Ivan III over the troops of the Tatar Khan Akhmat, the end of the Tatar-Mongol yoke that lasted 243 years, and the formation of Moscow Rus in the 15th century.

Muscovites are only 175 kilometers away, while Kaluga residents are just 20 kilometers from the spacious Dvortsovsko-Zalidovskaya floodplain of the Ugra River, where the main battle took place from October 8-11, 1480. Here is the monastery hermitage, which houses the museum complex and one of the significant churches of the Kaluga region, dedicated to the icon of the Mother of God "Vladimir."

The diorama is created in 3D format by the studio of military artists named after M.B. Grekov. On a canvas 23.6 meters long and 6.7 meters high, honored artist of Russia P.V. Ryzhensko depicted 155 characters, vividly conveying the spirit and life of the Russian military camp. While viewing the diorama, one can hear the sounds of cannon fire, the clatter of hooves, voices of people, birds singing, the ringing of bells, as well as smell the scent of autumn leaves. In a separate hall, archaeological finds, samples of military weapons from that era, and much more are presented.

The diorama museum "The Great Stand on the Ugra" was opened by His Holiness Patriarch Kirill of Moscow and All Russia on September 9, 2014, and invites visitors.