Simmons Hardware Company Warehouse

The Fleet Farm Arena, formerly Gateway Arena, is a multi-purpose arena inside Tyson Events Center, located in Sioux City, Iowa and sponsored by Tyson Foods and Fleet Farm. The arena is commonly referred to as Tyson Events Center for marketing purposes. The arena has three spectator levels: one suite level and two general seating levels named the 100 level and the 200 level, respectively. Its official maximum capacity is 10,000. Owned by the City of Sioux City, it is located on the riverfront overlooking the Missouri River. The venue was operated by the city as well until January 2018 when the city contracted with Philadelphia-based venue management firm Spectra to handle matters such as booking, marketing, staffing and food and beverage service. Spectra was acquired by Oak View Group in November 2021 to form OVG360 and in the process took over the arena management. It is home to the Sioux City Musketeers of the United States Hockey League (USHL) and the Sioux City Bandits of the National Arena League (NAL). This arena also hosts many college tournaments associated with the NAIA, including the NAIA Wrestling National Tournament, NAIA Women's Volleyball National Tournament, and the Division II NAIA Women's National Basketball Tournament, which was won back-to-back in 2004 and 2005 by Sioux City's Morningside College Mustangs.

The Sioux City Municipal Auditorium, known as the Long Lines Family Recreation Center or Long Lines Auditorium for sponsorship reasons, is a multi-purpose facility in Sioux City, Iowa. The fifth in a line of major indoor venues built in Sioux City, it was designed by Knute E. Westerlind in 1938 and finally completed after many delays in 1950. In the building's original form, it was an arena that seated up to 3,500 people. In 2003, the building was replaced by the Tyson Events Center, built around the northeast corner of the Municipal Auditorium. The building was then converted to its current use as a recreation center while preserving the exterior building. The converted arena was originally named Long Lines Family Recreation Center, though in 2023 the building added the Long Lines Auditorium signing to the southeast entrance and inside the auditorium. The auditorium is referred to as either name.

The Federal Building and United States Courthouse is located in Sioux City, Iowa, United States. The present city hall in Sioux City was previously the post office, federal building and courthouse. This building replaced it. It was designed by the local architectural firm of Beuttler & Arnold with the Des Moines firm of Proudfoot, Rawson, Souers & Thomas providing input and oversight. Construction began in 1932 under the direction of the Acting Supervising Architect of the Treasury James A. Wetmore. The building was dedicated on December 29, 1933. The Federal Government had paid $270,000 for the property, and about $725,000 on construction. Architecturally, the three-story, stone structure is a combination of Stripped Classicism and Art Deco. The post office moved to a new facility in 1984, and additional office space and a new courtroom were created in the building. A further renovation was undertaken from 1999 to 2000 and a third courtroom a judge's chamber, jury deliberation room, library, and holding cell for defendants were added. The building was listed on the National Register of Historic Places in 2013.

The Orpheum Theatre, also known as New Orpheum Theatre and Orpheum Electric Building, is a performing arts center located at 528 S. Pierce Street in Sioux City, Iowa. Built in 1927 as a vaudeville and movie palace, the theatre was restored in 1999 and today is the home of the Sioux City Symphony Orchestra.

The Woodbury County Courthouse is located at 620 Douglas Street in Sioux City, the county seat of Woodbury County, Iowa, United States. It is regarded as "one of the finest Prairie School buildings in the United States" and has been declared a National Historic Landmark for its architecture. It is used for legal proceedings in the county.

The Martin Hotel, erected as a Chicago style building in 1912, is located in Sioux City, Iowa. Added to the National Register of Historic Places in 1983, it is significant for its architecture, operating for many years as the Sheraton-Martin Hotel and now known as the Martin Tower Apartments.

T.S. Martin and Company, also known as Karlton's, Fishgalls & Cameo, is a historic building located in Sioux City, Iowa, United States. It is an L-shaped structure that fronts both Fourth Street and Nebraska Street. It was occupied by one of three locally owned department stores from 1894 to 1919. The buildings on Fourth Street were originally built in 1885. T.S. Martin and Company itself dates from 1880 when Thomas Sanford Martin opened a dry goods store in rented commercial space. He first acquired 515-517 Fourth Street in 1885, which he leased to a clothing store, and his brother Louis opened T.S. Martin and Company Shoes by leasing 519 Fourth Street the same year. Local architect William McLaughlin was hired to renovate 515-17 Fourth and neighboring 519 Fourth Street, and T.S. Martin and Company moved their whole operation in 1894. In 1901 they hired another local architect, Henry Fisher, to design an annex along Nebraska Street. The three-story building completed in 1902 features Beaux-Arts styling that includes a roof-line knee wall, and a cornice with acanthus leaf brackets and decorative swags. Martin's acquired 521 Fourth Street, a mirror image of 519 Fourth Street, in 1904. In 1911 they hired yet another local architect, William L. Steele, to design a completely new facade to unify 515–517, 519 and 521 Fourth Street. Designed in the Prairie School mode, it features white terra cotta, long decorative bands of terra cotta details of foliage and geometric patterns, and Chicago-style windows. After T.S. Martin and Company moved into a new six-story building across Nebraska Street, no longer extant, in 1919 this facility was divided into multiple storefronts and occupied by a variety of commercial enterprises. The 515-517 portion of the Fourth Street facade was covered with a wood face and its cornice removed, before it was significantly altered to its present appearance. T.S. Martin and Company was bought by The May Department Stores Company of St. Louis in 1948. It was the last locally owned department store at the time. The building was listed on the National Register of Historic Places in 1998.

The Williges Building, also known as Cownie-Williges Building, is a historic building located in Sioux City, Iowa, United States. It is a three-story commercial block that was designed by local architects William L. Steele and George Hilgers. The structure was built for August Williges to house his fur manufacturing factory, salesroom, and storage facility. The decorative terra cotta details on the main facade are Sullivanesque in style, which reflects Steele's association with Louis Sullivan from 1897 to 1900. Completed in 1930, it is one of the last commercial buildings constructed in the early Prairie School style in the United States, and Steele's last architectural commission in Sioux City. It was also built at the end of the period of time when terra cotta was popularly used as wall cladding. The building was listed on the National Register of Historic Places in 2007.

The Davidson Building is a historic building located in Sioux City, Iowa, United States. It was constructed by local businessmen and real estate developers Ben and Dave Davidson. They saw the need for an upscale office building for professionals. They hired prominent local architect William L. Steele to design the Early Commercial-style structure. It was built by the leading contractor in the city, Lytle Construction Company. Completed in 1913, it was Sioux City's first office building. The exterior of the L-shaped, six-story building is composed of terra cotta panels separated by vertical bands of Roman style brick, and capped with an ornate cornice. It is Sullivanesque in its design. Commercial space is located on the first floor, and office space occupies the upper floors. The building was listed on the National Register of Historic Places in 1999. In 2016 plans were unveiled to convert the building and the adjacent Warrior Hotel into a boutique hotel and apartments. The Davidson Building houses The Warrior Apartments, as well as 56 guest rooms for The Warrior Hotel on its second, third and fourth floors.

The Warrior Hotel is a historic hotel opened in 1930 and restored in 2020, located in downtown Sioux City, Iowa, United States.

The Sioux City Grain Exchange (SCGX) was a cash commodity market in Sioux City, Iowa that primarily traded corn, wheat, oat, and soybean. It was established in 1907 as the Sioux City Board of Trade, named the "fastest growing grain market in the world" in 1929, and among the largest exchanges in the world by the 1970s; transacting over 100 million bushels annually (valued at $1 billion as of 2018). It served the Corn Belt (primarily Iowa, Nebraska, South Dakota, and Minnesota) and primarily competed against the Chicago Mercantile Exchange, Minneapolis Grain Exchange and Kansas City Board of Trade. SCGX's rise and decline was driven by barge navigation of the Missouri River and mirrored the Sioux City Livestock Exchange (Sioux City Stockyards), the largest in the world during the 1970s. Both were co-founded by Vermont banker Fred L. Eaton.

The Motor Mart Building, also known as the Commerce Building, is a historic building located in Sioux City, Iowa, United States. It was built by Ralph A. Bennett, who was the owner of Bennett Auto Supply Company. The structure was designed in the style of the Chicago school by E.J. Henriques of the C.F. Lytle Company of Sioux City, who also built the structure. It was initially designed to be two stories tall, but the plans were changed and two more floors were added. It was designed to display, repair and provide parking for automobiles. It was also the first building in Sioux City to incorporate the flat slab system of framing of Claude A.P. Turner, and it was one of the first reinforced, poured concrete buildings in the city. The exterior of the concrete frame structure is clad with glazed brick over common brick infill. The building features terra cotta decorative elements. A.L. Galinsky bought the building in 1919 and converted it into an office building. Its name was changed to the Commerce Building at that time. The Roof Garden was added above the fourth floor from 1921 to 1923. It is a gabled structure covered with stucco. Large Palladian windows line the side walls. The structure housed a ballroom that hosted a variety of social events, and where many big bands played. Lawrence Welk played an early concert here. The building was listed on the National Register of Historic Places in 1993.