The Miracle of the Sun happens wherever there is a Marian apparition. It is a series of jumps and dances by the Sun, often accompanied by rainbow colors and other spheres of light. At this time people can look directly at the sun and not sustain any damage to their eyes. Moreover orbs of light often retain shapes and faces around the sun.At Fatima, the miracle of the sun was so intense that thousands of people fell to the ground out of fear that the Sun was going to fall on their heads! Recorded here at Medjugorje by Italians, it is no wonder the Woman "Clothed with the Sun" of Revelations 12:1 uses the Sun to make her presence known.
Many, many people have experienced their silver links on rosary chains turning to gold as they prayed. Tests done on the metals reveal that the change really is gold.
Another common sighting at Medjugorje is of the cross on Mt. Krizevac, where Mary has said she likes to go every morning to pray to her Son, vacillating, disappearing and then reappearing, only to spin on it's axis. You can see it on this medjugorje miracle compilation video.
Mary's Apparitions are indeed a wonderful miracle. Here are a few brief videos of her apparition to Mirjana, one of the six visionaries.
and here is a video of the other visionaries during the war in Bosnia, carrying Gospa's messages of Peace.
There are many other miracles occuring daily at Medjugorje, all of which are too numerous to name here. There are healings, words of prophecy, and amazing things which physics cannot explain. There have been sightings of other saints, like John the Baptist. And of course, there have been numerous sightings of Jesus Himself. But the greatest miracle of Medjugorje is the harvest of souls who have become devoted to God. Jesus Christ Himself is the greatest miracle of God's love for us, and our response to that is a miracle in and of itself that is absolutely greater than any signs and wonders we may see.
John 20:29
Then Jesus told him, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed."