The Orthodox Church of St. Archangel Michael, currently the Roman Catholic Church of the Assumption of the Blessed Virgin Mary in Smolnik was built in 1791 and was the fourth church in the village. It is situated on a hill about 300 meters from the road Ustrzyki Górne - Lutowiska. After the World War II and after the residents displacement, only the church surrounded by old trees remained. The wooden temple was built in the style of so-called Boyko simple (archaic) style and is one of the three survived churches of this type next to Liskowate and the church from Grąziowa, which currently is in the Sanok open-air museum. It is tripartite with a log frame structure, set on a stone foundation. The middle part is larger than the women's gallery and the presbytery. In the 1920s it was renovated and then covered with sheet metal. After 1951, when the H-T Action related to border correction took place, it became unused, which conduced its devastation. At that time, when the tourist traffic began, tourists who stayed in the Orthodox church overnight signed themselves inside (to this day the signatures can be seen in the upper part of the nave). In the 70s it was renovated and the roof was covered with shingle. At present, the church serves as a Roman Catholic church. From the old furnishings only fragments of the polychrome dated the 18th century survived. The icons which survived are in the museums in Lviv (16th century) and Łańcut. Next to the church there is a small cemetery, where only a few old gravestones have survived.
In 2013 The Orthodox church was inscribed on the UNESCO list and is located on the Wooden Architecture Trail (Szlak Kultury Drewnianej).