A thick-walled medieval building and silver coins turned up at Rusokastro

Excavators at the medieval fortified town of Rusokastro, in southeastern Bulgaria, have uncovered a large stone building and a scatter of silver coins. Medievalists.net reported the find on October 31, 2026, citing the Regional Historical Museum in Burgas. The building stands near the inner southern fortress wall. It is 7.6 meters wide. Its full length is not known yet. The stone walls are 1.1 meters thick and were set with a lot of mortar.

The interior is coated with a thick pink waterproof mortar. The museum said that suggests a water tank or a store for food, and that the surviving rooms may be the ground floor of a larger building whose upper story was lived in. The coins include silver issues of Bulgarian tsar Ivan Alexander, who ruled from 1331 to 1371, Venetian silver grossi called matapans, and copper coins. Specialists are cleaning them in the Burgas museum workshop. The dig is run by that museum, with funding from the Council of Ministers and the municipality of Kameno. The season's trenches are closed for the year. The reading of the coins is not finished.