I have never heard of such a thing as a 're-education camp' in the Catholic Church. It must be another rumor Satan is spreading amongst his followers on Earth to discredit the Church.
Well there is only one Catholic Church, but there are different types of Catholic churches such as the eastern rites. They use icons(pictures) instead of statues and have the gated altar and speak...
A lot, at the link below is a list of the 180 dioceses in Italy, along with Oratories. Each diocese contains a number of Churches, depending on its size.
There can only be one Catholic Church, this was spelled out by Our Blessed Lord who promised that all would be One, and He would send the Holy Spirit to make sure that we all stayed One.
There are 292 church parishes in the archdiocese of Boston that covers about 30 miles from Boston. In the city proper itself, there are 45 parish churches.