The Novgorod Kremlin is a historic fortress located in the city of Veliky Novgorod, Russia. It dates back to the 9th century and served as a political and cultural center during the medieval period. The Kremlin features impressive walls and towers, with the most notable being the Saint Sophia Cathedral, which is one of the oldest stone buildings in Russia. The Kremlin is recognized for its architectural significance and is a UNESCO World Heritage Site. It played a crucial role in the history of the Novgorod Republic, a powerful trading state in the Middle Ages. Today, it attracts tourists and historians interested in Russia's rich heritage.