Top 10 Unsolved Mysteries of the World
Once Socrates said "To know, is to know that you know nothing. That is the meaning of true knowledge." Science and our knowledge about this world developed amazingly in last few centuries, but there are many, many questions yet to be answered. Our world is much strange than it looks. It is full of strange and mysterious things that we humans can't understand and explain yet. Let's read about 10 unsolved mysteries of our world.
What do you think?