The Fort Rοupel is the largest complex of the fortified site along the Greek-Bulgarian border named Metaxa Line, with a total shelter of 1,849 meters and a length of 4,251 meters.
According to an inscription placed on two marble slabs on its eastern side, it was built in the year 1167, in 1754 by Sheriff Ahmet, a descendant of Gazi Evrenos.
According to the narration of Luke the Evangelist, Apostle Paul arrived in Philippi, the most important city of the area in the winter of 49-50 AD, during his first travel to Greece
Lake Doirani is a cross-border, fish-pond lake and a great wetland on the border of Greece with the Former Yugoslav Republic of Macedonia
Just a short distance from the city of Kilkis, everyone is talking about a lake with emerald waters and waterfalls. The reason for Lake Skra or otherwise “Blue Lake”, due to its color in the fossilized organisms on the bottom.


