Međugorje
Since 1981, in a small village in Bosnia-Hercegovina named Medjugorje, the Blessed Virgin Mary has been appearing and giving messages to the world. She tells us that God has sent Her to our world, and these years she is spending with us are a time of Grace granted by God. In Her own words She tells us, "I have come to tell the world that God exists. He is the fullness of life, and to enjoy this fullness and peace, you must return to God".

Our Lady continues to give messages to six people from the village of Medjugorje: Ivan, Jakov, Marija, Mirjana, Vicka, and Ivanka. These six people (referred to as "visionaries") have received apparitions of the Blessed Virgin Mary since June 24, 1981. In addition to Her public messages, Our Lady is to give each of the six visionaries a total of ten "secrets" or happenings that will occur on earth in the near future.
Some of the secrets pertain to the whole world while others concern the visionaries themselves or the local village. Only one of the secrets has so far been revealed by the visionaries. In the third secret Our Lady has promised to leave a supernatural, indestructible, and visible sign on the mountain where she first appeared. Our Lady said: "This sign will be given for the atheists.
You faithful already have signs and you have become the sign for the atheists. You faithful must not wait for the sign before you convert; convert soon. This time is a time of grace for you. You can never thank God enough for His grace. The time is for deepening your faith, and for your conversion. When the sign comes, it will be too late for many."
Source: medjugorje.org