The central attractions along the Danube for those who love nautical tourism are numerous fortifications from different periods in history. Even when they were constructed, they were aimed to impress invaders and travelers. Come to visit and find out if they have the same effect even today.

•             You will have to see for yourself why the Bač Fortress was the one that Despot Stefan Lazarević has chosen as a bastion against the Ottomans at the beginning of the 15th century. You might also find climbing to the top of the tower interesting.

•             The Petrovaradin Fortress is quite recognizable. Did you know that there was a monastery occupying the same spot in the first half of the 13th century?

•             Kalemegdan Fortress is a genuine historical witness that holds finds from different cultures such as Celts, Goths, Huns, Avars, Slavs, and Ottomans. Take a cruise and have a look at these heavy walls from the river, you'll see why.

•             Smederevo Fort has special importance given the medieval capital of Serbia that was moved here after Belgrade has fallen.

•             You may not know much about the Ram Fortress but it should be on your bucket list. It dates back to the 15th century and is a fine example of an artillery stronghold.

•             Golubac Fortress, a medieval fortress dating back to the 14th Century, is perched atop a steep, rocky cliff on the right bank of the Danube.

•             Cruising along the Danube, you will reach Kladovo and its Fetislam Fortress. Find out why the 16th-century Ottoman ruler Suleiman the Great decided to build the fort right here.