Another architectural monument of the pre-revolutionary past of Romanov-Borisoglebsk, now known as the city of Tutayev, is the ancient Kazan-Transfiguration Church. Built in the 18th century, it has miraculously survived to this day. The church is located on the left bank of the Volga and, before the unification of the cities, was part of Romanov, situated in the center of the Romanov district. It is the oldest temple on the left bank of the city. Its construction became possible thanks to the decision of local residents to build a stone church. In 1758, a solemn consecration of the site for construction took place. However, the cornerstone, set at the top of the Volga slope, was found the next day right by the water. This event was perceived as a sign from God, and the construction site was moved to the slope of the bank. There is another legend that the stones for the church were delivered by water, thus providing the necessary amount on the shore. Today, it is hard to say which version is closer to the truth; perhaps both are urban legends.

By the end of the 1750s, the Kazan-Transfiguration Church was fully built and consecrated, becoming a center of attraction for the residents of Romanov. In 1822, the city merged with Borisoglebsk, and the church became part of the new city of Romanov-Borisoglebsk. The church still stands out in its historical district due to its original appearance and rich architectural decoration. It is located at the main entrance from the Volga, and its five domes are visible from afar, attracting the attention of hundreds of people on passing ships. In the lower part of the church is the winter temple of the Kazan Icon of the Mother of God, while the upper Transfiguration church is open in the summer. Both parishes have been restored after the Soviet period and are now active, representing a sample of ancient Russian architecture.