Chicago Federal Building

The Chicago Tunnel Company was the builder and operator of a 2 ft (610 mm) narrow-gauge railway freight tunnel network under downtown Chicago, Illinois. This was regulated by the Interstate Commerce Commission as an interurban even though it operated entirely under central Chicago, did not carry passengers, and was entirely underground. It inspired the construction of the London Post Office Railway.

The Everett McKinley Dirksen United States Courthouse, commonly referred to as the Dirksen Federal Building, is a skyscraper in the Chicago Loop at 219 South Dearborn Street. It was designed by Ludwig Mies van der Rohe and completed in 1964. The building is 384 feet (117 m) tall with 30 floors; it was named for U.S. Congressman Everett Dirksen. The building houses the United States Court of Appeals for the Seventh Circuit, the United States District Court for the Northern District of Illinois, the United States Bankruptcy Court, the United States Marshal for the Northern District of Illinois, United States Attorney for the Northern District of Illinois, and local offices for various court-related federal agencies, such as the Federal Public Defender, United States Probation Service, United States Trustee, and National Labor Relations Board. It is one of three buildings making up the modernist Chicago Federal Center complex designed by van der Rohe, along with Federal Plaza, the U.S. Post Office (Loop Station) and the Kluczynski Federal Building. Separate from the Federal Plaza, but opposite the Kluczynski Building across Jackson Boulevard, is the Metcalfe Federal Building.

Great Northern Hotel was a historic hotel in Chicago's Loop area. It was located at the northeast corner of Jackson Boulevard and Dearborn Street in Chicago, Illinois. The building was designed by Burnham and Root. They created a new design, with an urban office block floor plan that was free of historical or European influences. The site is now occupied by the Dirksen Federal Building.

Flamingo, created by noted American artist Alexander Calder, is a 53-foot (16 m) tall stabile located in the Federal Plaza in front of the Kluczynski Federal Building in Chicago, Illinois, United States. It was commissioned by the United States General Services Administration and was unveiled in 1974, although Calder's signature on the sculpture indicates it was constructed in 1973.

The Berghoff restaurant, at 17 West Adams Street, near the center of the Chicago Loop, was opened in 1898 by Herman Joseph Berghoff and has become a Chicago landmark.

The Citadel Center is a 580 ft (177m) tall skyscraper in the Chicago Loop. It is located at 131 S. Dearborn St., Chicago, Illinois 60603, and was designed by Spanish architect Ricardo Bofill and his firm, Taller de Arquitectura. As of 2020, Citadel Center is the 65th tallest building in Chicago. It was completed in 2003 and has 37 above ground floors and 3 below (40 total) covering 1,536,548 sq. ft. It was certified as LEED Gold in 2017. A limited-edition cast of the Winged Victory of Samothrace, one of the world's most famous sculptures, was displayed in the lobby, and removed in late 2018. The original is on display at the Louvre Museum. The lobby previously featured a curved wall of Padauk red wood.The Citadel Center was the first building in Chicago to use a raised-floor pressurized plenum system, allowing for more individual control of climate by the use of adjustable floor diffusers.

The United States Custom House, Court House, and Post Office was a federal government building from the 1870s to 1896 in the block bounded by Adams Street, Jackson Boulevard, Dearborn Street, and Clark Street in the Chicago Loop

The Consumers Building is a Chicago school high rise office building in Chicago's Loop. It was designed by Jenney, Mundie & Jensen, and was built by Jacob L. Kesner in 1913. The building is owned by the General Services Administration and currently sits vacant.

Jackson (also Jackson/Dearborn) is an 'L' station on the CTA's Blue Line, located in the Loop. This station was recently renovated to resemble the Jackson/State station; a pedestrian tunnel connects these two stations, allowing for a free transfer to the Red Line. Farecard transfers to the Harold Washington Library – State/Van Buren station are also available at this station for the Brown, Orange, Pink, and Purple Lines. This is the southernmost of the three stations on one long continuous platform underneath Dearborn Street, with the stops at Monroe and Washington being the other two.

The Marquette Building, completed in 1895, is a Chicago landmark that was built by the George A. Fuller Company and designed by architects Holabird & Roche. The building is currently owned by the John D. and Catherine T. MacArthur Foundation. It is located in the community area known as the "Loop" in Cook County, Illinois, United States. The building was one of the early steel frame skyscrapers of its day, and is considered one of the best examples of the Chicago School of architecture. The building originally had a reddish, terra cotta exterior that, prior to restoration, was somewhat blackened due to decades of Loop soot. It is noted both for its then cutting edge frame and its ornate interior. Since construction, the building has received numerous awards and honors. It was designated a Chicago Landmark on June 9, 1975, and is considered an architectural masterpiece. It was added to the National Register of Historic Places on August 17, 1973 and named a National Historic Landmark on January 7, 1976. The building's preservation has been a major focus of the Landmarks Preservation Council of Illinois. The John D. and Catherine T. MacArthur Foundation completed an extensive four-year restoration in 2006.

The Century Building is a high rise office building in Chicago's Loop. It was designed by Holabird & Roche, and was built in 1915. It is a contributing property to the Loop Retail Historic District. The building is representative of the transition of Chicago high rise design from the Chicago School to Art Deco, and its north and east facades feature Neo-Manueline ornamentation. It is owned by the General Services Administration and currently sits vacant.

The Kluczynski Federal Building is a skyscraper in the downtown Chicago Loop located at 230 South Dearborn Street. The 45-story structure was designed by Ludwig Mies van der Rohe and completed in 1974 as the last portion of the new Federal Center. It is 562 feet (171 m) tall and with the Mies designed post office and plaza stands on the site previously occupied by the Chicago Federal Building by the architect Henry Ives Cobb. It was named in honor of U.S. Congressman John C. Kluczynski, who represented Illinois's 5th congressional district from 1951 to 1975 after his death that year. This is one of three buildings by van der Rohe in the Federal Center Plaza complex: the others are the Loop Station Post Office and the Everett McKinley Dirksen United States Courthouse. The Kluczynski Building is constructed of a steel frame and contains 1,200,000 sq ft (110,000 m2) of space. The exterior is sheathed in bronze-tinted glass set into bright aluminum frames. Beneath the windows are steel spandrel panels painted flat black and windows are separated horizontally by steel mullions of projecting steel I-beams also painted black. The two-story lobby is recessed allowing for a colonnade or pilotis to encircle the building at street level. The interior walls and floors of the lobby are covered in granite which extends to the plaza. The lobby contains several commemorative tablets which were removed from the previous building. The entire complex is based on a 28 ft (8.5 m) grid pattern so that seams of the granite pavers in the plaza extend into the building lobbies and up the sides to create unity among the three structures. The Center is similar to Mies' earlier Toronto-Dominion Centre and was expanded in 1991 with the addition of the 28-story Metcalfe Federal Building to the south across Jackson Boulevard.In 2009, GSA undertook a major project to improve energy efficiency which included solar film on windows, LED lighting upgraded HVAC and other mechanical systems. After the work, the building received a LEED Silver certification.Alexander Calder's sculpture Flamingo, a 53-foot (16 m) red steel sculpture, was unveiled on the plaza October 24, 1974. The sculpture was conserved and restored in 1998. The plaza is also the site of a weekly farmers' market during the spring and summer seasons, open to the community. Federal agencies in the building include the Air Force Recruiting Service, the Department of State Passport Agency, Department of Labor, Internal Revenue Service, Office of Personnel Management, Consumer Product Safety Commission, General Services Administration and offices for both the U.S. senators from Illinois, Richard "Dick" Durbin and Tammy Duckworth.Following his election as president on November 4, 2008, Barack Obama established his administration's transitional offices in the federal building, prompting heightened security measures in the surrounding area.