Doboj fortress
is now one of the main touristic attractions in Bosnia and Hezegovina. Enhanced by the Bosnian aristocracy Kotromanic 13th centuryand the Ottomans when they arrived in Doboj in the 16th century. Much of it is still intact and the view from the fortress's hilltop position is worth the climb.One of the attractive spots nearby is Mount Ozren, the mountain right next to Doboj.
There are a few 13th century monasteries, St. Nicholaâs Monastery near Petrovo being the most interesting among them.