Names of Catholic Churches are hardly unique. There are over 17,000 of them in the United Sates but only 6,464 have unique names. Basilica Of National Shrine Of Immaculate Conception Of Blessed Virgin Mary, however, actually is one of the uniquely named parishes. If you were curious the mostly commonly name for a Catholic Church is: St Joseph.
400 Michigan Avenue Northeast Washington, DC 20017-1566