![Sisak. The Sisak Fortress (Croatian: Tvrđava Sisak or Stari grad Sisak) is an early modern lowland fortification built on the bank of the Kupa River before its … Sisak. The Sisak Fortress (Croatian: Tvrđava Sisak or Stari grad Sisak) is an early modern lowland fortification built on the bank of the Kupa River before its …](https://i.pinimg.com/originals/33/b9/28/33b92821cee8c3360bcdaedf00bf2a2b.jpg)
Sisak. The Sisak Fortress (Croatian: Tvrđava Sisak or Stari grad Sisak) is an early modern lowland fortification built on the bank of the Kupa River before its …
![Croatia, Old Fortress in the Town of Sisak on the Banks of Kupa River Stock Photo - Image of forest, bush: 190134928 Croatia, Old Fortress in the Town of Sisak on the Banks of Kupa River Stock Photo - Image of forest, bush: 190134928](https://thumbs.dreamstime.com/z/croatia-old-fortress-town-sisak-banks-kupa-river-autumn-croatia-old-fortress-town-sisak-190134928.jpg)
Croatia, Old Fortress in the Town of Sisak on the Banks of Kupa River Stock Photo - Image of forest, bush: 190134928
![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 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](https://c8.alamy.com/comp/2F2WRCC/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-2F2WRCC.jpg)