The text discusses the wooden churches of Kizhi in Russia, built in 1714 without nails, featuring 22 domes, preserved by frozen winters, and recognized by UNESCO.

Infact verdict: Mostly True (73/100).

The verification of claims about the wooden churches of Kizhi reveals a combination of strong historical evidence and cultural recognition. The construction without nails is well-documented and consistent across multiple authoritative sources, including Amusing Planet and the UNESCO World Heritage Centre. This fact contributes to both their unique construction technique and cultural value recognized by UNESCO. Additionally, the Church of the Transfiguration indeed has 22 domes, confirmed by sources such as The Art Newspaper and Amusing Planet. Finally, the preservation attributed to frozen winters is plausible given the location's climatic conditions but lacks specific documentation within the available sources. The recognition of the churches as a UNESCO World Heritage Site since 1990 further supports their cultural importance.