In the place of the former Benedictine monastery, a neo-gothic style church designed by Apolinaras Mikulskis was built at the end of the 19th century. The main façade towers reflect its special elegance and grandeur.

The interior of Senieji Trakai Church of the Annunciation and St. Benedict is lovely but simple and has Benedictine iconography. Visitors can enjoy unique sculptures and paintings in three chapels and nine altars. Several things are especially noteworthy: St. Augustine and St. Benedict sculptures along with side altars dedicated to St. Benedict and his twin sister St. Scholastica.

One of the notable artworks in the church is the 18th-century painting by Simonas Čehavičius, depicting St. Benedict. Another valuable piece is the 17th-century painting depicting the Blessed Virgin Mary with the Infant in her arms. In the past, the church also had a portrait of Vytautas the Great...

In the church’s courtyard stands a wayside shrine dedicated to the Blessed Virgin Mary with the Infant in her arms. This is one of the nine wayside shrines, created along the symbolic Vytautas the Great road. A sculpture in the ancient site of Senieji Trakai castle symbolizes the purity of motherhood and love for the motherland. Some people point to the parallel between priestess Birutė, holding her son Vytautas in her arms.