Mysterious Round Holes Discovered in Russia
There are about 10 holes in the field. Each hole has an entrance to a cave-like hollow place in the earth. Some of the tunnels are big enough for a person of medium height to stand up straight. According to one of the suppositions, all the underground passages are interconnected in a network. A few daredevils equipped with flashlights attempted walking across the tunnels.
Krasnoyarsk scientists have not yet made any official statements as to the explanation of the phenomenon.