St Polycarp's Church in Izmir is right across from the Izmir Hilton. The church is surrounded by a high fence and not open to the public. You must call in advance and reportedly they will only allow tourist groups to visit the church. Very few people seem to know about the church even though it is apparently one of the oldest buildings in the city. There is a main entrance with an intercom, but the person who answered would not come out to talk.