The existence of mystical creatures such as ghosts, pocong, kuntilanak, and so on is still a mystery that has not been solved until now.
The phenomenon of the emergence of crop circles or plants circles that appear mysteriously in several locations in the world is still a mystery.
The existence of unjected flying objects, such as UFOs, is still a mystery that has not been solved.
The phenomenon of the loss of ships and aircraft mysteriously, such as Mary Celeste ships and Malaysian Airlines MH370 aircraft, is still a mystery that has not been solved.
The existence of Bigfoot or Sasquatch, a large creature that is similar to humans but has not been proven scientifically, is still a mystery.
The phenomenon of objects that move or change positions by itself, such as objects that move in the house or tomb that moves, is still a mystery.
The existence of Atlantis, a legendary city that is said to have drowned on the seabed, is still a mystery that has not been solved.
The phenomenon of the occurrence of black holes in several locations in the world, such as in Siberia and Guatemala, is still a mystery.
The existence of unidentified sea creatures, such as monsters of Loch Ness or Kraken, is still a mystery that has not been solved.
The phenomenon of rain of ice or meteors that falls from the sky suddenly in several locations in the world is still a mystery.