The first archaeological excavation of Turkey in Europe at Ulpiana ancient site / Kosovo commenced in 2012 and currently continuing. In the first years of excavations, 1950 s, northern city walls gate, northern cemetery and a church near the northern gate have been unearthed. With our work biggest and most important discoveries of last sixty years, a baptistery and a church, were made. Both structures were built in the 4th century A.C.E. and rebuilt in the 5th century upon its destruction due to an earthquake. Following the earthquake in 6th century both structures have been abandoned. Because of its sheer size and being located next to the baptistery the church was most probably dedicated to the Saints Florus and Laurus, who have been martyred here because of their faith. There are floor mosaics with geometrical patterns and names of donors and dedicatory inscriptions in Latin.