In the late 19th and early 20th centuries, the Russian Empire spread its influence over controlled territories not only politically but also religiously. Architects became conduits of this influence, leading to the emergence of large Orthodox churches and cathedrals in Bulgaria, Lithuania, and Poland. One of the most famous among Russians is the Alexander Nevsky Cathedral in Sofia. This cathedral has become a symbol of the Bulgarian capital and the largest religious building in Bulgaria, capable of accommodating 5,000 people.

After the Russo-Turkish War of 1877-1878, Bulgaria gained autonomy within the Ottoman Empire thanks to the Russian emperor and his army. In memory of this event, a decision was made in 1879 to build the cathedral; however, due to the death of the original project's author, Ivan Bogomolov, construction did not begin until 1904. The cathedral was built on the highest point in the city center. Although the church was meant to remind people of Russia, it also features Bulgarian elements in its design. For example, the oak doors of the main entrance are adorned with carvings in the old Bulgarian style. Inside the cathedral, there are 82 icons and over 200 frescoes created by Bulgarian and Russian artists.