Resavska Pecina cave is located in Babina Glava Hill near town of Despotovac in Eastern Serbia. For millions of years subterranean river has carved incredible shapes in limestone thus creating 80 million year old Resavska cave. 4,5 km long cave was discovered as late as 1962, and 10 years later 800 m out of 2830 m was finally opened for visitors. Constant temperature is maintained at 7 C.
The interior of the cave abounds in numerous and varied halls, channels, galleries, columns, stalactites, stalagmites, draperies and flowstone waterfalls. The cave formations begin at the very entrance to the cave. The formations came about through the dissolving and precipitation of calcium carbonate, and the color determined by the minerals through which the water passed. Three colors can be seen, red (from iron oxide), white (from crystalline calcite) and yellow (from the addition of clay).