There are a number of places on earth that remain shrouded in mystery, despite the best efforts of scientists to explain them. Some of these places are locations where strange things have happened for centuries, while others are relatively new. But one thing is for sure – they all remain a mystery. So, from the largest monolith structure in the world to the temple that contains mummies of bulls, Today, we will take a look at 15 most mysterious locations that science still can't explain.