The most popular site in Kozmodemyansk is the Open-Air Ethnographical Museum which is located on a hill overlooking the historical part of the city and the River Volga.  It was opened in 1983 after many authentic wooden structures were bought here for preservation from around the Mari Volga region.  This includes a large house with a courtyard, smaller houses, trade houses, a banya and a windmill.  Several of the buildings are also furnished with furniture and tools from the 19th century.  It is run as part of the Kozmodemyansk Museum Complex.