I'm going to sidetrack the conversation a bit just to have an answer, possibly from an RC that has more info then I on the subject. What are some of the more recent Marian visitations recognized as such by the See of Rome?
Akita, Japan "Our Lady of Akita" 1973, is accepted
Amsterdam, Neatherlands "Our Lady of All Nations" 1940's-1950's
the authenticity of this is disputed and I believe it is still counted as open to investigation but has been slightly more favorable, since this is seen as an open investigation I will not speak out for or agianst it.
Fatima, Portugal "Our Lady of the Rosary" or "Our Lady of Fatima" in 1917
this is probably the most famous modern apperition and the one that is most respected.
Knock, County Mayo, Ireland "Our Lady of Knock" 1879
Lourdes, France, Our Lady of Lourdes 1858, this is another vision that is very famous and well respected. Recently even the Archbishop of Canterbury visited the shrine that was built there.
the one I am most familiar with is Fatima and I know a little bit about Lourdes and Guadalupe
not sure if you count the vision of Our Lady of Guadalupe as "recent" it took place in 1531
even though that is almost 500 years ago, it is pertenant to this conversation because it is seen by many as the "start" of Marian apperitions, before 1531 they were much more rare and not as widely accepted, Guadalupe is seen as by many as the first "modern" apperition