The Holy Trinity Church in Opawica is a Roman Catholic parish church belonging to the Głubczyce deanery in the Opole diocese. Its construction lasted from 1701 to 1706, and it was founded by Leopold Karol Siedlnicki, the Crown Treasurer. The church was built in the Baroque style, and only the crypts remain from the earlier structure dedicated to Saint Elizabeth. In 1733, a polychrome by Józef Mateusz Lasser was created on the church's vault, highlighting the artistic value of the interior. In 1759, the church suffered damage due to a fire but was quickly rebuilt, and a tower was added with its further development in mind. In the second half of the 18th century, the church was richly furnished in the Rococo style, primarily by the workshop of the Nysa sculptor Józef Hartmann. These elements, such as the altars, were enriched with paintings by the artist Francki from Ząbkowice Śląskie. The church was consecrated in 1786. One of the most valuable pieces of furnishings is the pulpit from 1772, shaped like a boat, decorated with bas-relief figures of fishermen and a sail on the canopy. The Holy Trinity Church in Opawica combines architectural, artistic, and historical value, serving as an example of Baroque sacred architecture and fitting into the local religious history. An interesting feature is the rich set of frescoes on the vault, which not only decorate the interior but also attract the attention of visitors, emphasizing the cultural significance of this place.