Why is "Russian church architecture" trending?

Wikipedia Overview

Russian churches often have various recurrent elements in their architecture. The onion dome is for example a recurrent and important element in the architecture of Russian churches. Often Russian churches have also multi-colored filigree ornamental elements. Furthermore the colour white plays an important role in the style of Russian churches. In the past, Russian churches were made out of wood. Many Russian Orthodox churches are distinguished by their verticality, bright colors and multiple domes, which provide a striking contrast with the flat Russian landscape, often covered in snow. The first churches in Kievan Rus', such as the 13-domed wooden Cathedral of St. Sophia, Novgorod, differed in this regard from their mainly single-dome Byzantine predecessors. The number of domes was important symbolically. One dome symbolized the single God; three represented the Trinity, and five represented Christ and his four evangelists. At first, the baptistery, narthex, and choir gallery above the narthex were a common feature of Russian churches, but gradually they disappeared. After a century of Byzantine imitations, the Russian masons began to emphasise the verticality in church design.