15 Mysterious Events That Cannot Be Explained

15 mysterious events that cannot be explained. 15 mysterious events that cannot be explained. The mystery surrounding the hole dug in Tsarichina Village, Bulgaria. The mystery of the excavation in Tsarichina Village, Bulgaria, remains one of the most unusual and controversial operations ever associated with a military force. Beginning on the sixth of December, nineteen ninety, residents of the quiet village witnessed something completely unexpected. Heavy military equipment arrived without warning, and a large section of land was quickly sealed off with tall camouflage fencing. So, those were 15 mysterious events that cannot be explained. Thank you for watching! Thank you to CO.AG for the background music!