[12] Like some other ancient Russian cities, it has a kremlin, which is a citadel similar to the more famous one in Moscow and also built of red brick.

The Kolomna citadel was a part of the Great Abatis Border[14] and, although much of the surrounding wall was removed in the eighteenth century and materials used to construct other public buildings, the remaining stretch of wall, several towers, and some interior buildings have been preserved and held in good shape with a museum located inside.

In front of the façade stands a statue of Dmitry Donskoy, celebrating the gathering of his troops in Kolomna prior to the Battle of Kulikovo in 1380.

The civic arms of Kolomna were granted by Empress Catherine II, who was influenced by the similar-sounding name of the famous Colonna family of Rome.

The city is situated at the confluence of the Moskva and Oka Rivers, 114 kilometers (71 mi) (by rail) southeast of Moscow.