Russian medieval architecture is characterized by its unique blend of Byzantine, Slavic, and local influences. Key features include onion-shaped domes, intricate frescoes, and the use of brick and stone. Notable structures from this period include the Kremlin in Moscow and the Saint Sophia Cathedral in Novgorod, which showcase the grandeur and spiritual significance of the era. The architecture often served religious purposes, with many churches and monasteries built during this time. The Kievan Rus period saw the rise of fortified structures, while later developments included the ornate designs of the Moscow school. These elements reflect the cultural and historical evolution of Russia.