In the village of Mostovka, known as Christ's Nativity, there are two churches. One of them is a stone church with a single altar, dedicated to the Nativity of Christ, built in 1821. Next to it stands a stone bell tower, erected in 1878. The other church is wooden, also with a single altar, dedicated to the Nativity of the Blessed Virgin Mary. It was built in 1793 and was likely reconstructed in the second half of the 19th century. The fence around the churches is stone, with wooden grilles, and was built in 1879. Nearby is a cemetery. The church houses a locally venerated relic, the Dolinskaya Icon of the Mother of God, made in the ancient Greek style and placed in a carved gilded kiot. The village is located 165 versts from Kostroma and 75 versts from Makaryev. The nearest churches are in the villages: the Transfiguration in Pelegovo, 7 versts away, the Kazan in Mamontovo, 12 versts away, as well as the Ascension in Tsykin and the Protection in Valakh, both 14 versts away.