Cathedral of St Michael and St John a rare example of one of only four 19th century Cathedrals in NSW and is the second Cathedral to be built in the colony. The design of the building is one of only a few prepared by English architect Charles Hansom for use in Australia and notably modelled on St Osburg's Church in Coventry dating from the 1840s. The place is important in demonstrating the principal characteristics of a class of cultural or natural places/environments in New South Wales. The Cathedral of Saints Michael and John is representative example of a mid 19thbcentury Catholic Cathedral which was established during a
Cathedral of St. Mary of the Assumption (Trenton, New Jersey) in the tower was built by the Seth Thomas Clock Company for the Paris Exposition of 1878 where it served as the official time piece. The Diocese of Trenton was established by Pope Leo XIII on August 2, 1881. St. Mary’s Church was chosen to be the cathedral of the new diocese. Bishop Michael J. O'Farrell was consecrated on Cardinal John McCloskey at St. Patrick's Cathedral in New York City and enthroned in St. Mary's on November 17, 1881. The gymnasium and convent were built around 1900. The spire was in danger of collapsing and it was removed in 1956.