Srednja Stijena Cave is a natural cave located on Konjuh Mountain in Bosnia and Herzegovina. It is known for its unique geological formations, including stalactites, stalagmites, and flowstones. The cave is situated at an elevation of 1,161 meters above sea level and has a length of around 500 meters. It was discovered in 1954 and opened to visitors in the 1980s. Visitors can take guided tours of the cave and see its various chambers, tunnels, and formations.