The Cathedral of St. Borys and St. Gleb is a historic church located in Vladimir, Russia. Built in the 12th century, it is one of the earliest examples of Russian architecture and is known for its unique design and intricate frescoes. The cathedral is dedicated to the first saints of Kievan Rus, Borys and Gleb, who were the sons of Prince Vladimir the Great. This cathedral is part of the UNESCO World Heritage Site known as the "White Monuments of Vladimir and Suzdal." Its significance lies not only in its architectural beauty but also in its role as a symbol of the early Christianization of the region. Visitors can admire its well-preserved structure and learn about its historical importance.