At Predel one can see the ruins of the Austrian fortress.

At the beginning of the 19th century there stood a wooden fortress.

On 15th May 1809 a fierce battle took place between Napoleon’s Armada and the Austrian defenders.
The border regiment of Austrian - Croatian soldiers (from Slunj) was under the command of captain Johann von Hermannsdorf and in spite of the enemy's superiority, the defenders bravely warded off all the attacks and did not answer the call to surrender.
On 18th May the aggressors managed to burn down the fortress and in the assault the majority of the regiment, together with their captain, were killed.

Emperor Ferdinand I built a mighty monument to the brave defenders and it was revealed in 1851.

The monument consists of a rock wall approximately six metres high with a pyramid leaning on it made of tilled stone with a chiselled inscription.

A cast-iron statue of a wounded lion and a nicely fenced area stress the magnitude of the monument.

The fortress was renovated in 1848 but its ruins can be seen on both sides of the road.