5. The Resava Cave
Discovered in 1962, this 2.8 miles long and 1.75 miles deep cave was opened for visitors in 1972. Among the oldest caves in Serbia, the Resava Cave features impressive halls, narrow channels, cave galleries, stalactites and stalagmites, and flowstone waterfalls. Rocks formations inside the cave can be red, white, and yellow, depending on the minerals in stones through which the water passes. This cave is a protected natural monument, and its area includes 27 acres of surrounding terrain with forests, rock formations, small water streams, and other beautiful sights. A definite earned place on our list.
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