Croatia, Kvarner, Senj, 'Nehaj Fortress. 20080973Iew Of The Adriatic From The Roof. Looming On A Spur To The South Of The City, The Nehaj Fortress Was Built In 1558 In Defence Against The Invading Ottoman Armies. Today It Houses A Museum Dedicted To The City'S Defenders, The Uskok Corsairs Who, With Often Less Than A Thousand Men, Held The Turkish Forces At Bay For Almost A Century. '