The Česko-národní síň (Czech National Hall), also called the Milligan Auditorium, stands at the southwest corner of Main and Birch streets in Milligan. The Czech and Sokol lodges built it in 1929 to designs by E. J. Kritz, R. O. Stake and Karel Urban, in a Late Gothic Revival style. It was listed on the National Register on February 29, 1996.