Emmanuel Lutheran Church at 1500 Hickory St. in Dakota City was built in 1860 for $2,000 by Augustus T. Haase, a carpenter and church member, for a congregation organized on July 22, 1859. The Greek Revival frame church is called the oldest standing Lutheran church building in Nebraska and at times served as the territorial courthouse. It was added to the National Register of Historic Places on October 15, 1969. A "Territorial Church" historical marker stands on S. 15th St.