Situated at the north end of Lake Onega, Kizhi Island is home to the famed Open Air Museum of Architecture. Dozens of buildings, including wooden houses, windmills and two 18th-century wooden churches, illustrate Russia’s unusual and visionary architecture. Kizhi’s most famous building is the three-tiered, fairytale-like Transfiguration Church, dating from 1714. Also on the island are the 1862 octagonal bell tower and the Church of Intercession, built without a single nail.