At the Lappeenranta Fortress, you will find the oldest Orthodox church in Finland, the Protection of the Theotokos Church (Pokrova), dating from 1785. The patron saint icon of the church is the Pokrova icon from 1780, which depicts the Annunciation to the Blessed Virgin Mary.
In winter, the church is open to the public, during services. Concerts also take place at the church.