People of faith have witnessed some incredible things over the years.
One man saw the Virgin Mary in the clouds on his way to visit his brother.
At another time, a statue of the Virgin Mary looked to be crying blood in Argentina, causing many to flock towards it in awe.
There was also a wall in Nigeria which appeared to have a profile of Jesus Christ's face. People made incredible pilgrimages to come and worship.
But perhaps the most famed appearance of the Virgin Mary is the Our Lady Tà Pao statue in Vietnam.