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Was built in medieval times. Now in ruins.
© OpenStreetMap contributors
Built in Russian Empire times and still standing on busy crossroad in Merke.
Popular destination for hiking.
Used as a sports hall of nearby school but still retaining wall decorations.
It planned to be simple exploration adit but geologists unexpectedly opened sealed natural cavity. While being opened for everyone quality of the cave deteorated but still it is a nice place to visit if you are into digging.