Located in northwestern Bulgaria, this major cave is one of Bulgaria's largest.
A 2.5-kilometre walk through its numerous galleries will reward with all the usual subterranean attractions such as multicoloured stalactites, stalagmites, underground waters, stone galleries big and small, and so on and so forth. But what makes it so remarkable is one side gallery where you will see the largest collection of prehistoric rock art to be found anywhere in modern Bulgaria.
It contains hundreds of mesmerising, sometimes even psychedelic guano drawings that depict anything from men, women and animals to rivers, snakes, imaginary solar calendars and... strange figures that some will find extraterrestrial in appearance. There are many similarities between this sort of rock art and other rock art found in France, Spain and Turkey, but the Bulgarian site offers the added value of being almost completely unknown to the outside world. A real and, as it is underground, literary well-hidden gem.
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