Bargala was a Byzantine fortified town constructed between the 4th and 6th century, a period spanning Late Antiquity and Early Byzantium. Today it is an archaeological site and a visitor attraction in the Karbinci Municipality. It is located 20 km northeast of the modern city of Štip on the lower slopes of the Plačkovica mountain. Archaeological excavations have uncovered a basilica, trade quarters, a water tank, a bath, and a fortification system with an impressive main gate and infrastructure.
Gold coins of Emperor Phokas (602-610) are discovered at the locality, as well as 6th and 7th century Slavic pottery.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.