Scientists have spent centuries uncovering the many mysteries of the natural world, yet some phenomenon still baffle even the sharpest of scientific minds.

From strange lights in the sky following earthquakes to rocks that spontaneously glide across the ground, these naturally-occurring events from around the world seem to have no purpose or meaning.

Science Uncovered‘s Hayley Birch has compiled a list of the top 10 most strange, cryptic and incredible naturally-occurring events from around the world