The Dubuque County Jail is a historic building at 36 East 8th Street in Dubuque, Iowa, United States. Completed in 1858, the jail is an example of the uncommon Egyptian Revival style. It is architecturally a highly original work of John F. Rague, who also designed the 1837 Old Capitol of Illinois and the 1840 Territorial Capitol of Iowa. The building was designated a National Historic Landmark for its architecture in 1987. It served as a jail for more than a century, became a museum in 1975, and was converted into county offices in 2016.
The Farm House, also known as the Knapp–Wilson House, is the oldest building on the campus of Iowa State University in Ames, Iowa. Now a museum open to the general public, this house was built 1861-65 as part of the model farm that eventually became Iowa State. It was designated a National Historic Landmark in 1964 for its association with agriculturist and teacher Seaman A. Knapp and with U.S. Secretary of Agriculture James Wilson, both of whom lived here while teaching at Iowa State.
The Langworthy House, also known as the Octagon House, is an historic building located in Dubuque, Iowa, United States. Built in 1856, it was designed by local architect John F. Rague for local politician Edward Langworthy. The two-story brick home features tall windows, a columned entry, and a windowed cupola. Langworthy and three of his brothers were among the first settlers in Dubuque. They were partners in a lead mine, helped to build the territorial road between Dubuque and Iowa City, they farmed, invested in real estate, and they owned a steamboat and a mercantile exchange. The house has been passed down through Langworthy's descendants. It was individually listed on the National Register of Historic Places in 1975, and it was included as a contributing property in the Langworthy Historic District in 2004.
The Riverview Terrace Historic District is a 15.2-acre (6.2 ha) historic district in Davenport, Iowa, United States, that was listed on the National Register of Historic Places in 1984. It was listed on the Davenport Register of Historic Properties in 1993. The neighborhood was originally named Burrow's Bluff and Lookout Park and contains a three-acre park on a large hill.
The Kahl Building is an historic building located in Downtown Davenport, Iowa, United States. It was listed on the National Register of Historic Places in 1983. In 2020 it was included as a contributing property in the Davenport Downtown Commercial Historic District. The building also includes the Capitol Theatre.
First Baptist Church is located in central Davenport, Iowa, United States. It was listed on the National Register of Historic Places in 1983 as Calvary Baptist Church/First Baptist Church. It is affiliated with American Baptist Churches USA.
The Hose Station No. 1 is a historic building located in downtown Davenport, Iowa, United States. It was listed on the National Register of Historic Places in 1983 and on the Davenport Register of Historic Properties in 1999. In 2019 it was included as a contributing property in the Davenport Motor Row and Industrial Historic District.
The Arthur Ebeling House is a historic building located on the west side of Davenport, Iowa, United States. The Colonial Revival house was designed by its original owner, Arthur Ebeling. It was built from 1912-1913 and it was listed on the National Register of Historic Places in 1984.
The John Littig House is a historic building located on the northwest side of Davenport, Iowa, United States. The Gothic Revival style residence was built in 1867 and has been listed on the National Register of Historic Places since 1984 and on the Davenport Register of Historic Properties since 1993.
The Des Moines County Court House located in Burlington, Iowa, United States, was built in 1940. It was listed on the National Register of Historic Places in 2003 as a part of the PWA-Era County Courthouses of Iowa Multiple Properties Submission. The courthouse is the fourth structure to house court functions and county administration.
The Allamakee County Court House in Waukon, Iowa, United States was built in 1940. It was placed on the National Register of Historic Places in 2003 as a part of the PWA-Era County Courthouses of IA Multiple Properties Submission. The courthouse is the third building the county has used for court functions and county administration.
The Floyd County Court House in Charles City, Iowa, United States was built in 1940. It was listed on the National Register of Historic Places in 2003 as a part of the PWA-Era County Courthouses of IA Multiple Properties Submission. It is the only property in this group, however, that was built without funding from the Public Works Administration (PWA). The courthouse is the third structure to house court functions and county administration.
The Lee County Courthouse is located in Fort Madison, Iowa, United States. The courthouse serves the court functions and county administration for the northern part of Lee County, and it is the county's first courthouse. It was listed on the National Register of Historic Places in 1976 as a part of the County Courthouses in Iowa Thematic Resource. In 2014, it was included as a contributing property in the Park-to-Park Residential Historic District. Southern Lee County is served from a courthouse in Keokuk in the former Federal Courthouse building.
The Iowa County Courthouse in Marengo, Iowa, United States, was built in 1893. It was listed on the National Register of Historic Places in 1981 as a part of the County Courthouses in Iowa Thematic Resource. The courthouse is the fourth building the county has used for court functions and county administration.
The Davis County Courthouse in Bloomfield, Iowa, United States was built in 1877. It was individually listed on the National Register of Historic Places in 1974. Two years later it was listed as a contributing property in the Bloomfield Square historic district. The courthouse is the second building to house court functions and county administration.
The Hartington City Hall and Auditorium, also known as the Hartington Municipal Building, is a city-owned, brick-clad, 2-story center in Hartington, Nebraska. It was designed between 1921 and 1923 in the Prairie School style by architect William L. Steele (1875–1949).
The Lynnville Mill and Dam, also known as Wagaman Mill, is a historic complex located in Lynnville, Iowa, United States. John Sparks relocated from Lee County to Jasper County in 1845. That year he began building a small paddle-wheel saw mill, which was completed the following year. In 1847 he began the construction of a grist mill, which he finished in 1848. This was the first mill in Jasper County. Jesse Arnold, who bought the mill in 1852, and his son Joseph replaced the paddle-wheel with a vertical drive hydraulic turbine in 1868. W.K. Wagaman bought the mill in 1898 and modernized the machinery, and his son Fred installed the concrete dam, and added an additional turbine and a wheel house in 1918–1919. He discontinued the grinding of wheat, which was no longer profitable, and focused on the production of animal feed, corn meal, and electricity. Fred's son Harris (Huck) took over the mill in 1946, and in 1958 completely electrified the operation. The Jasper County Conservation Board began restoring the wheel house of the mill to its original operating condition in 1973. The mill was listed on the National Register of Historic Places in 1977. The Lynnville Historical Society began repairing the mill building in 1998.
Oskaloosa Public Library is a facility located in Oskaloosa, Iowa, United States. Construction of the library was launched in 1902 with a grant from the Carnegie Corporation of New York. The building was added to the National Register of Historic Places in 1991.
The Paton and Hannah Wilson House is a historic building located north of Salem, Iowa, United States. Built by 1839, this single story Greek Revival is one of the oldest brick residences in Salem Township. Paton, or Payton, served in both the Iowa territorial legislature (1840-1842) and the Iowa state legislature (1850-1852). He advocated for the rights of all people, including citizens of color. Hannah was a charter member of Salem Monthly Meeting (Quakers). The Wilson's estate sold the house to Reuben and Abigail Hallowell in 1875, and their descendants continued to own it into the 21st century. The house was listed on the National Register of Historic Places in 2010.
Gustav A. Hanssen was an American architect. He designed private residences in Davenport, Iowa and later moved to San Diego, California. Several of his buildings are listed on the National Register of Historic Places (NRHP).
