Nature and EnvironmentWooden churches on the island of Kizhi02:57This browser does not support the video element.Nature and Environment01/29/2017January 29, 2017The wooden churches on the Russian island of Kizhi on Lake Onega were included in the list of UNESCO World Heritage sites in 1990. Their maintenance requires painstaking efforts on the part of carpenters and restorers. Copy linkAdvertisement