![Decagonal Roman Fortress Tower from Ancient Bononia Unearthed in Bulgaria’s Danube City Vidin](https://i0.wp.com/archaeologyinbulgaria.com/wp-content/uploads/2018/09/Decagonal-Fortress-Tower-Roman-City-Bononia-Danube-Vidin-Bulgaria-2.jpg?resize=150%2C150)
Decagonal Roman Fortress Tower from Ancient Bononia Unearthed in Bulgaria’s Danube City Vidin
The ruins of a decagonal fortress tower from the Ancient Roman city of Bononia – said to be the largest Roman fortress on the Lower Danube – have been uncovered by archaeologists in the city of Vidin in Northwest Bulgaria.