John Bell Block

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.

Dubuque City Hall is located in Dubuque, Iowa, United States. The building was designed by J.N. Moody after Faneuil Hall in Boston and the Fulton Street Market in New York City. Dubuque architect John F. Rague served as the supervising architect during construction. Following a Medieval tradition, the city market was located on the first floor, municipal offices were located on the second floor, and a ballroom for civic events was located on the third floor.The three-story brick structure rests on a raised limestone basement. It features a gable roof with bracketed eaves. Each gable has a circular window. The 11-foot (3.4 m) tall windows are located in bays defined by arches. The building was first occupied in February 1858. Initially, the main floor was divided into stalls. They were converted into additional office space for the city when the market relocated. The third floor ballroom was converted into an archery and pistol range for the police department, a bowling alley, and a horseshoe pitching area. The original cupola, which held a bell and four-faced clock, became deteriorated and was removed from the building in 1954. The bell was placed in the plaza next to city hall. The building was listed on the National Register of Historic Places in 1972. A new cupola was created using the original design, and it was erected in 1990. The bell was returned to the tower at that time.

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.

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 

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.

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.

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.

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.

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.

The Andrew–Ryan House is a historic house located in Dubuque, Iowa, United States. This is considered the best example of the Second Empire style in the city, and one of finest in the state of Iowa. The two-story brick structure was designed by Dubuque architect Fridolin J. Herr Sr. It was originally built 13 feet (4.0 m) to the north, but was moved to its present location between 1885 and 1890. The porches on the south side may have been added at that time. The house is from the high Second Empire style and features a mansard roof, arched windows, dominant chimneys, a prominent belvedere, and classical moldings on the pilasters, belt courses, and stone work. The house was individually listed on the National Register of Historic Places in 1985. It was included as a contributing property in the Jackson Park Historic District in 1986.

The Upper Central Avenue 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 2012. At the time of its nomination it consisted of 65 resources, which included 56 contributing buildings, one contributing site and eight non-contributing buildings. This six block section of Central Avenue is located on the north side of the central business district. The largely linear district includes a jog at 18th Street. Below the jog the street was originally named Clay Street and above it Couler Avenue. It was also the dividing line where all commerce used the German language exclusively to the north. At one time the street featured a streetcar route and it was a significant farm-to-market route and a gateway into the city from the north. The period of significance for the district covers the years 1856 to 1919, but its historic commercial development occurred during the 1870s and 1880s. The buildings were constructed in brick and are largely two to three stories tall. There are also several single-story buildings and one that is four stories tall. The Italianate and the Queen Anne are dominant. Nine of the buildings are major commercial blocks. In addition to the commercial buildings, there is the two-story, brick, former Fire Engine House Number 1 that faces south at the jog in the street. The buildings in the district are considered some of the best examples of late-19th-century commercial designs in the city.