The Greek Catholic Patriarchate church near Jaffa Gate is a remarkable place to experience icons, both painted and frescoed. They also display their theology by carrying three candles in one bundle and two in another in processions. The first symbolizes the trinity and the second, the unity of the human and divine in Jesus Christ, issues which divided the early church. St. James Armenian Orthodox Cathedral with its dim lighting, open space and choir of seminarians is worth a visit. The lamps hanging all over the nave are gifts from Armenian Christians who came on pilgrimage to Jerusalem.
Visitors remark on the sense of timelessness in the services.
There are many other Churches which should be visited. Check with the Christian Information Center about location and times of services.