Church of St. John (Constantinople)

The Church of St. John in Constantinople (modern-day Istanbul) was a significant Byzantine church attributed to the Emperor Justinian’s reign, built in the 6th century. Renowned for its impressive architecture and mosaics, it served as an important religious and cultural center. The church was dedicated to St. John the Baptist and exemplified Byzantine artistic and architectural achievements. Over centuries, it influenced religious art and served as a model for later churches. Today, its remains offer insight into Byzantine history, art, and architecture, reflecting the grandeur of Constantinople’s status as a Christian hub before the city's transformation into Istanbul.