Saint Sophia Church, Sofia
'Church of Holy Wisdom') is the oldest church in the Bulgarian capital Sofia, dating to the fourth century.[1] The Saint Sofia Church (often abbreviated as St. Sophia) came under control of a metropolitan bishop in the Second Bulgarian Empire (12th to 14th centuries).The 12th-century frescoes were destroyed, replaced with minarets, and the church was converted to a mosque in the 16th century during Ottoman Bulgaria.[1][2][3] The Saint Sofia Church is now one of the most valuable pieces of Early Christian architecture in Southeastern Europe.The floor of the church is covered with complex Early Christian ornamental or flora and fauna-themed mosaics.