The Church of the Assumption of the Virgin Mary in Opočno stands as a testament to the rich architectural and historical tapestry of the region. Located in the southeastern part of the town, this Roman Catholic parish church has been protected as a cultural monument since 1964. Originally Gothic, it showcases elements from various periods, with its current baroque structure dating back to the early 18th century.

The first documented mention of the church dates back to 1358 when it was recognized as a parish church. Historical sources suggest that Hrzek and Jan z Opočna were instrumental in its construction during this period. The sacristy, part of the original Gothic structure from the mid-14th century, features distinctive architectural elements such as figurative consoles and a pointed keystone, dating back to around 1350. A heraldic shield with a hříčka figure on the presbytery vault further supports this attribution.

Throughout its history, the church has undergone significant transformations. In the early 18th century, between 1710 and 1714, it was reconstructed into its current baroque form. This period of reconstruction culminated in the consecration of the church on December 3, 1714. The architectural evolution continued after a major fire in 1802, leading to repairs including the addition of the present bell tower.

The church's architecture is characterized by its baroque style, featuring a narrower presbytery and a pyramidal bell tower added post-1802. The interior boasts a pseudobaroque main altar from 1846, adorned with sculptures of Saint Peter and Saint Paul, an image of the Assumption of the Virgin Mary from the 19th century, and an 18th-century sculpture of the Virgin Mary. Additional elements include pseudoromantic side altars dedicated to Saint Joseph and Saint Anne, as well as a pulpit from the same period.

Ownership and administration of the church have seen notable changes over the centuries. In the 15th century until 1588, the Novohradští z Kolovrat family owned Opočno and used the church as a family burial site. Subsequent owners, including the Vřesovcové, continued this tradition.

Today, the Church of the Assumption of the Virgin Mary in Opočno remains an active place of worship, with masses held once a month on Sundays at 10:30 AM. The surrounding area includes what was once a parsonage, now privately owned, and to the north stands an 18th-century statue of Saint John Nepomucene, also protected as a cultural monument.

Visitors to Opočno can appreciate not only the church's architectural beauty but also its historical significance. Its preservation as a cultural monument underscores its importance in the region's heritage. The Church of the Assumption of the Virgin Mary invites exploration and reflection on its storied past and enduring presence.