St. Nicholas сhurch is a monument of Belarusian architecture of the XVI-XVII centuries. It is located in Mir - a small town in Belarus. As some resources suggest, the construction of the church was financed by Duke Nikolai Radziwill Sirotka - a statesman and a military man of the Grand Duchy of Lithuania.
The temple is situated on the central square of Mir, very close to Mirsky Castle.
St. Nicholas church is a stone, three-nave basilica with three towers. There is a powerful tower-belfry with four levels on the entrance to the church from a side where a central squire of Mir is located. It has a pyramidal broach roof and a square base. Under the apse of the church there is the crypt with 30 tombs.
Rebels were gathering in St. Nicholas church in 1863 to prepare for the future rebellion. This fact mostly determined the fate of the Catholic church. After the defeat of the uprising, the royal government turned the temple into the Orthodox church.