Dubuque City Hall

The John Bell Block, also known as the German Bank & Trust Building, is a historic building located in Dubuque, Iowa, United States. The three-story brick commercial Italianate building was constructed by local businessman John Bell in 1886. Its location on the north side of the central business district meant that it housed several businesses owned by the city's German immigrant population. Chief among them was the German Trust and Savings Bank. It became a tenant when the building was completed and it remained until it built its own building in 1922. In 1918 anti-German sentiments that resulted from World War I forced the bank to change its name to Union Trust and Savings Bank. It remained in operation until 1932 when a run on its deposits as a result of the Great Depression forced it to fail. Its building was taken over by Dubuque Bank and Trust. Three prominent Dubuque professionals also had offices on the second floor of the building. German-born architect Martin Heer had offices beginning in 1888. He partnered with another German-born architect, Guido Beck, from 1889 to 1895. Beck was noted for his commercial blocks and churches. Contractor Anton Zwack had offices here from 1911 to c. 1965. The building was listed on the National Register of Historic Places in 2002. An early tenant was Baumgartner and Kleih Hardware store

The Ziepprecht Block is a historic building located in Dubuque, Iowa, United States. Completed in 1888, it is a fine example of transitional commercial Italianate architecture. The three-story brick structure features a heavy projecting cornice and rounded pediment from the Italianate, with larger paired windows from the Second Empire style, and three-sided bay windows from the Queen Anne style. It is also one of a small number of double storefront blocks that remain in the downtown area. The building is named for Henry Ziepprecht a German-born druggist who settled in Dubuque in 1856 and died in 1887. His estate paid to have this building constructed on the location of an older building that housed his drug store. Now managed by Joseph Wittmer, the drug store and a confectionery were the first businesses to occupy the storefronts. The upper floors housed apartments. The building was listed on the National Register of Historic Places in 2002.

St. Luke's United Methodist Church, also known as St. Luke's Methodist and as St. Luke's United Methodist, is a historic Richardsonian Romanesque-style church located at 1199 Main Street in Dubuque, Iowa. It was individually listed on the National Register of Historic Places in 1998, and as a contributing property in the Upper Main Street Historic District in 2005. It is part of the Iowa Conference of the United Methodist Church. The church has more Tiffany windows than any other church in the state.According to its NRHP nomination, the building is significant for its history in religion in Dubuque, for its Richardsonian Romanesque (unique in Dubuque), and for its Tiffany glass.: 15 

Saint Patrick's Church is a Catholic parish in the Archdiocese of Dubuque, and is located at 15th and Iowa Streets, Dubuque, Iowa, United States. The church and rectory were included as contributing properties in the Jackson Park Historic District that was listed on the National Register of Historic Places in 1986. St. Patrick's Church is located two blocks away from St. Mary's Church. The reason for the close proximity of the two parishes was that St. Mary was originally built for service to German families of Dubuque, and St. Patrick's provided services for the Irish settlers to Dubuque.

St. John's Episcopal Church is a parish of the Diocese of Iowa, located in Dubuque, Iowa, United States. The church was included as a contributing property in the Jackson Park Historic District that was listed on the National Register of Historic Places in 1986.

Jackson Park Historic District is a nationally recognized historic district located in Dubuque, Iowa, United States. It was listed on the National Register of Historic Places in 1986. This is primarily a residential area, with some institutional and commercial buildings, located north of the central business district. The city originally developed just to the south of here. The Cathedral Historic District represents the oldest residential neighborhood in Dubuque, and began to house the working-class people closer to the docks. Once the Jackson Park area opened for development the city's wealthier residents built their homes here. Architectural styles rang from the vernacular, which are found mainly along the bluff, to the high style found mainly along Main and Locust Streets. Most of the houses were built from the mid to the late 19th century. The Andrew-Ryan House (1873) was individually listed on the National Register. Most of the institutional architecture are churches, which include St. John's Episcopal Church (1878) and St. Patrick's Catholic Church (1878). Central High School, no longer extant, was located across from Jackson Park, and it was also individually listed on the National Register before its demise. The Carnegie-Stout Public Library (1902) is located on the south side of the district.

Washington Residential Historic District is a nationally recognized historic district located in Dubuque, Iowa, United States. It was listed on the National Register of Historic Places in 2015. At the time of its nomination it consisted of 327 resources, which included 262 contributing buildings, 61 non-contributing buildings, and two non-contributing objects. This is one of the early residential areas of Dubuque, and was home to its German community. It also defines the "walkable city" with commercial, industrial, and institutional buildings located here. There are a number of churches in the district from various denominations. Of particular interest are St. Mary's Catholic Church (1866), St. John's Lutheran Church (1880), and St. Matthew's Lutheran Church (1908). A significant number of the buildings were constructed in brick, and the vast majority of the buildings in the district were built by 1891. Vernacular structures are commonplace here, as are various Victorian styles. Hollenfelz House (1891) and the Dubuque Casket Company building (1894) are individually listed on the National Register. The former St. Mary's Catholic Church complex forms its own historic district within this one.

The Interstate Power Company Building, also known as the Masonic Hall and the Dubuque Electric Company, is a historic building located in Dubuque, Iowa, United States. While a single facility, this is actually two buildings: an 1894 three-story Queen Anne, and a 1956 three-story (later four-story) Modern Movement free-standing addition. The Dubuque Electric Company moved into the older building in 1924, and the following year it was reorganized as Interstate Power Company. This became the headquarters of a regional electrical utility that, at one time, served parts of eight states and a Canadian province. The Great Depression and antitrust court rulings altered the company's fortunes. The 1956 addition was designed to hold the companies large computers in an air-conditioned environment, in addition to office space. Other additions to the building were made in 1962, 1981 and 1989. The facility remained Interstate's corporate headquarters until Alliant Energy bought and absorbed the company in 1996. Alliant continued to use the building for a period of time afterward. It was included as a contributing property in the Upper Main Street Historic District in 2005, and it was individually listed on the National Register of Historic Places in 2008.

Saint Mary's Catholic Church is a former parish of the Archdiocese of Dubuque. The church is located in Dubuque, Iowa, United States, at the corner of 15th and White Streets. The church is recognizable by its steeple– one of the tallest in the area. The church property was added to the National Register of Historic Places as an historic district in 2015, and the various buildings were included as contributing properties in the Washington Residential Historic District later in the same year.

Dubuque YMCA Building, also known as the Iowa Inn, is a historic building located in Dubuque, Iowa, United States. Several area churches partnered to form the local YMCA in 1857. It was one of the first chapters formed west of the Mississippi River. Its activities ceased during the American Civil War, and it was reformed in 1866. They rented rooms on Main Street for their activities. Its first modest gymnasium was outfitted in 1884, and it was improved in 1992 when YMCA took over the facilities over the former Dubuque Athletic Club. The local YMCA completed the first section of this facility two years later, with the second section completed in 1916. Often the local YMCA chapters copied or adapted one another's building designs, which gave their facilities an institutional character in form and style. The Romanesque Revival style was popular in Iowa in the 19th century, which is reflected in the 1894 section. In the early 20th century they generally employed the Neoclassical and Commercial styles, and the 1916 wing reflects the Commercial style. YMCA remained here until 1969, when they opened a new joint facility with the YWCA on Dodge Street. This building became the Iowa Inn, which rented rooms to low-income people. MetroPlains Development of St. Paul, Minnesota bought the building in 2000 and renovated it into an apartment building for senior citizens known as the Henry Stout Apartments. It was named for an early supporter of YMCA in Dubuque.The building was listed on the National Register of Historic Places in 2002.

Upper Main Street Historic District is a nationally recognized historic district located in Dubuque, Iowa, United States. It was listed on the National Register of Historic Places in 2005. At the time of its nomination it consisted of 24 resources, which included 18 contributing buildings, and six non-contributing buildings. In 2011 the boundaries of the district were expanded to include four additional buildings on the west side of the 900 block of Main Street. The district is the northern end of the city's most important commercial street. It is situated on a level terrace above the downtown area, located to the east. The buildings located on the east side of Main Street have exposed foundations along the alley because the grade descends in that direction. For the most part the district is made up of commercial buildings, although there is one house, four rowhouses, and a church. All of the buildings are masonry construction, and they are between one and four stories tall. The bell tower of St. Luke's United Methodist Church (1896) is equivalent to an eight-story building. St. Luke's Church and the Interstate Power Company Building (1894, 1956) are individually listed on the National Register.

The Hollenfelz House, also known as St. Mary's High School for Boys, is a historic building located in Dubuque, Iowa, United States. This highly decorative Second Empire structure was built as a home for Michael Hollenfelz, who owned a wholesale firm dealing with wines, liquors and beer. The building features a mansard roof with dormers and a cupola, which is normal for this style, and High Victorian decorative details, which is not. Particularly unusual is the cornice and the stringcourses. In 1906 it was acquired by St. Mary's Catholic Church across the street for a boy's high school. The school was operated by the Brothers of Mary from St. Louis, and its curriculum focused on business and commerce. That school ceased operations in 1929 and the building was then used for the parish grade school. In 1957 it was converted into an apartment building. It was individually listed on the National Register of Historic Places in 1977, and it was included as a contributing property in the Washington Residential Historic District in 2015.