St. John was the patron saint of Bohemia and this UES neighborhood church on the corner of First Avenue has a large Slovak following (there are regular masses in Slovakand English). Beautiful stained glass windows and beautifully decorated church. They still use real candles for the votives not those tacky electric timed ones. Audio system echoes at times and sometimes makes it difficult to understand. Sometimes, homeless are sleeping in the vestibule which can make the single worshipper somewhat apprehensive on entering.