The Estate of Didžioji Daunorava, located in the Joniškis District, is an outstanding example of mid-19th-century architecture, reflecting traditional wooden and half-timbered construction typical of Žiemgala. As a regional cultural monument, the estate features a unique architectural style characteristic of the German-influenced architecture of Courland. Although only a few buildings of the large estate complex have survived, the grounds are still adorned with remnants of ponds and park fragments. First mentioned in 1557, the estate was owned by various noble families and counts, including the Maškovskis, Marcinkevičius,
barons von Trankvicus, and von Mantoifel-Scioges. The estate is also known as the home of one of the largest Latvian communities in Lithuania, the "dundurniekai," and served as a cultural center for this community for a long time. Today, the estate grounds feature the "Dundurniekai" exhibition, established by the Žiemgala Cultural Society Joniškis Branch. The exhibition, displayed in the manor house windows, commemorates the history of the estate and the life of the Latvian community. The estate and this exhibition are important cultural landmarks, revealing the shared history and culture of both Lithuania and Latvia.