Croatia, old fortress in the town of Sisak on the banks of Kupa River, in autumn Stock Photo - Alamy
Fortress Old town Sisak, which is located next to the river Kupa and is 470 years old, was built in 1550. The fort served in defense against the Turks Stock Photo - Alamy
Sisak fortress stock image. Image of city, castle, fortified - 44386911