Basilica Di Santa Maria Maggiore
Piazza di S. - Maria Maggiore
The largest Roman Catholic Marian church in Italy, the Basilica di Santa Maria Maggiore, is owned by the Holy See and policed by Vatican City State agents instead of Italian police. This church is only one of four churches that hold the title of a major basilica. Interior mosaics, a triumphal arch and beautiful high altar make this basilica worth visiting.