St. Nikita's Orthodox Church

Orthodox church of St. Nikita Martyr holds the dignity of the Sanctuary of the Podlasie Units and is the seat of probably the only Catholic parish in the Byzantine-Slavic rite in the world. The wooden temple has a log structure and an east presbytery. Inside you can see, among others 17th-century icon of the patron Saint Nikita, which was founded by the family of one of the faithful, a historic iconostasis, 18th century tsarist gate and liturgical book, as well as a number of processional icons. The Ecumenical Center is located next to the Neo-Unicorn temple and conducts retreat activities.

The temple was built in 1631. During the partitions it was in Austria and the Kingdom of Poland. After the liquidation of the Brest Union in 1875, it served as an Orthodox church. Thanks to the efforts of local believers, the Uniate parish was restored in 1927, although there were conflicts between the Uniates and Orthodox believers. In 1974, Cardinal Stefan Wyszyński visited Kostomłoty.

The Uniate of Podlasie, to whom the sanctuary is dedicated, are 13 parishioners from Pratulin, who in 1874 suffered a martyr's death for their faith at the hands of the invaders.