The Church of St. Sophia is a historic cathedral located in Kyiv, Ukraine. Built in the 11th century, it is renowned for its stunning Byzantine architecture and beautiful mosaics. The church was named after Hagia Sophia in Constantinople and has served as a significant religious site throughout its history. Designated a UNESCO World Heritage Site, the Church of St. Sophia is an important symbol of Ukrainian culture and history. Its interior features intricate frescoes and a unique layout, reflecting the artistic styles of the time. The church remains an active place of worship and a popular tourist destination.