The First Presbyterian Church in Bridgewater and the Hansen-Hagedorn Barn near Tea have been added to the National Register of Historic Places. Built in 1928, the First Presbyterian Church in Bridgewater is a significant work of religious architecture in the "prairie style" first popularized by Frank Lloyd Wright. The Hansen-Hagedorn Barn, built around 1916, is a Dutch gambrel which represents the early 20th-century agricultural history of Lincoln County. Liz Almlie, Historic Preservation Specialist with the South Dakota Historical Society, shared the history of these buildings.