If you take the Gedimino Prospektas (the main street of Vilnius) and walk across the Zvërynas bridge, you'll find the Church of the Apparition of the Holy Mother of God on your right just after you passed the bridge.
It is a Russian Orthodox church, built in 1903 and restored in 2009. Sorry, I don't have any photos from inside, but the church is very beautiful with its many icons, mosaics, and frescoes.
This church seems to have two names: the Church of Holy Mother, and the Assumption Cathedral. The latter name is used in the church itself.
Principal Algirdas, or Olgerds, build the church in 1346. Both Algirdas and his second wife Yuliana as well as the Polish-Lithuanian king Alexander and his wife Jelena Joanovna are said to have been buried in the church.
The church has suffered from three disasterous fires in 1610, 1716 and 1748, and it has also been used as a dwelling-place, store-room, warehouse, baracks and even as the anatomical theatre for the university.
It is still a working church with masses Saturdays at 17.00 and Sundays at 09.00.
I stayed quite a long time in the church, it was very beautiful and very tranquile.
Like the Orthodox Church of St Parasceve, this one was also founded by Algirdas, the Grand Duke of Lithuania, but this time for his second, also Russian, wife Julianna (his first wife Maria Jaroslavna had died in 1346). Both Algirdas and Julianna are buried in the crypt there. In the 16th century the church passed into the hands of the Greek Catholics, who, among other things, replaced the round dome with a sloping roof. The church was ravaged by two fires and then the rising waters of the river damaged its foundations to such an extent that Mass was no longer celebrated there in the early 19th century. The building was given first to the military and then to the university. In 1864, however, thanks to the efforts of archbishop Jozef Siemaszko, the church was restored, its iconostasis added to and it reverted to the Russian Orthodox Church. After WWII the cathedral was neglected again. Unheated and for that reason only occasionally used, it fell into disrepair until its restoration in 1978-89. It was then that the wall of one of the towers was left unplastered. According to experts, that tower is as old as that of Gedyminas. The church is now used by a Sunday Orthodox school. It is also the venue of the International Festival of Orthodox Church Music.
I'm not sure if the church is open to visitors but when we approached it on our way back to the car we saw a woman leaving it and locking the door.
Close to St.Anne and St.Francis & Bernardines churches, and close to St.Michael's church as well, there is a fourth church, but this time it's not Catholic, but Russian Orthodox: it's the Orthodox Church of the Holy Mother of God, lying on the left bank of the Vilnelė, just close to the bridge to Uzupio. It was first established in the 15th century, but the rebuilt in the Byzantine style in the 17th century.
In the 19th century it was part of the University, and used as auditorium and museum.
During 1864 - 1868 the cathedral was rebuilt as it looks now, in a Georgian-medieval style.
The Orthodox Church of the Holy Mother of God (on my picture) was closed when I was there. His tallest dome dominated the skyline.
The church really reminded me a little Georgian medieval architecture. Look here at the Sveti-Tskhoveli in Mtskheta, the largest functioning cathedral in Georgia and compare the two churches, aren't they similar? Well, as for now I did visit Georgia only on VT but, who knows, maybe someday...