The Monastery and Church of Saint Michael the Archangel, known locally as Saint Michael's Monastery Church, is a state and national historic place in Union City, New Jersey, United States. Formally opened in 1869 and completed in 1875, the grounds of the complex are bounded West Street and Summit Avenue between 18th and 21st Streets. The small street leading to its front entrance from the east is called Monastery Place. At one time the largest Roman Catholic church in Hudson County, it has since become home to a Presbyterian congregation while part of the grounds are used for housing and educ