25 unsolved mysteries that cannot be explained | compilation. Today, we take a look at these 25 unsolved that cannot be explained. The world is very vast and diverse, and with so many different people and environments, it's no wonder that our world is full of mysteries. Although researchers have done a great job at unravelling some of these mysteries, many of them remain unsolved. Structures made by early humans are understandably not common. Years of wear and tear, as well as intentional damage over the centuries, means that many of our ancestors’ humble buildings have been lost to time. Because of this, you might be surprised to learn of a supposedly man-made structure that you very well have never heard of. Pamban Island, a small island situated in the peninsular of India. Nearby is Mannar Island, which belongs to Sri Lanka. So today, we'll be taking a look at 25 unsolved mysteries that cannot be explained. Thank you for watching! Thank you to CO.AG for the background music!