St Patrick's Church, Wicklow

St. Peter and St. Paul's Cathedral is an old cathedral, in use until 1643. It is the largest of Glendalough's seven churches and was built in several stages from the 10th century to the early 13th century. The oldest part of the ruin is the present nave. The choir and sacristy date from the late 12th and early 13th centuries. The market cross, which is now in the visitors' centre, was reconstructed in the 19th century from fragments scattered around the site. It may have originally stood opposite the west portal of the cathedral.

Dublin Mosque is a Muslim place of worship and the headquarters of the Islamic Foundation of Ireland.

The Greenville Hall Synagogue in Dublin is an Ashkenazi synagogue built in 1924-25 by architect Aubrey Vincent O'Rourke. In use until 1986, this brick synagogue now serves as an office building.