![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
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