Kizhi is the Lake Onega island famed for its UNESCO-listed wooden church ensemble.
Kizhi Island lies in Lake Onega in Russia’s Republic of Karelia. Its best-known landmark is Kizhi Pogost, a historic churchyard containing the Transfiguration Church, the Intercession Church and a bell tower. The ensemble was inscribed on the UNESCO World Heritage List in 1990.
The Transfiguration Church is especially recognizable for its many silvery wooden domes, while the Intercession Church has a smaller group of domes and served as a heated winter church. The buildings were constructed from timber using sophisticated traditional carpentry, and the historic ensemble is celebrated as a masterpiece of Russian wooden architecture.
The answer is sometimes stated more precisely as “Kizhi Pogost,” the UNESCO property, rather than simply “Kizhi,” the island. That distinction does not make the stored answer unfair: the question asks which island, so Kizhi is the canonical geographic answer. Kizhi also hosts an open-air museum with historic wooden buildings relocated from other parts of northern Russia.