After his circuitous journey from Westland Row, Bloom comes to "the open backdoor of All Hallows." This church, which everyone but Joyce seems to call St. Andrew's, has a back entrance on Cumberland Street South and a main entrance on Westland Row, just south of the post office.
St. Andrew's is a beautiful church, and its founding in 1832 was a matter of considerable civic pride. The website of the Irish Catholic Bishops Conference, www.catholicbishops.ie, notes that "The church cost £20,000 to build, a large sum reflecting the new-found confidence of Irish Catholics in the period after Emancipation. The decision to build St Andrew's was also strongly supported by one of its most eminent parishioners, Daniel O’Connell."
As happens again with the mortuary chapel in the next chapter, however, Bloom takes no architectural or historical interest in the church. For him it is a place where an alien species performs strange rites.