The church of Saint John the Baptist in Sembronas is located in the neighborhood Bomboliana. It is a small arched, one-storey church dedicated to Saint John's Head Cut (celebrates on August 29).
Despite the humble exterior appearance of the church, the interior surfaces are adorned with 15th-century frescoes in relatively poor condition. The iconographic program includes evangelical scenes in the arch and various saints in lower part. The sanctuary depicts the scene of Panagia Platytera and hierarchs before Christ (Melismos)