Carbide & Carbon Building

List of persons holding prominent positions within the Barack Obama presidential primary campaign, 2008. According to an August 2008 statement by Deputy Campaign Manager Steve Hildebrand, the Obama campaign had "large-scale operations in 22 states, medium operations in many others, and small staffs in only a handful of states," with several thousand paid operatives on the ground between Obama staff and Democratic Party staff. That month, these numbers included "about 200 paid staffers working in Florida and more on the way, 90 in Michigan with plans to expand to 200 by August, at least 200 each eventually in Pennsylvania and Ohio, and 50 in Missouri with plans to expand to 150."

The Old Republic Building, at 307 North Michigan Avenue in Chicago, Illinois, was built in 1924. It was designed by architects Vitzthum & Burns. It was listed as a Chicago Landmark in 2010. It was known as the Bell Building until 1956. It was the first high-rise building in its area.

Blue Cross Blue Shield Association (BCBSA) is a federation of 35 separate United States health insurance companies that provide health insurance in the United States to more than 106 million people. It was formed in 1982 from the merger of its two namesake organizations: Blue Cross was founded in 1929 and became the Blue Cross Association in 1960, while Blue Shield emerged in 1939 and the Blue Shield Association was created in 1948. In the healthcare insurance industry, the organization is known as "The Association" and has two offices, one in Chicago and one in Washington, D.C. The main office is in Chicago in the Illinois Center at 225 North Michigan Avenue. The BCBSA claims to control access to the Blue Cross and Blue Shield trademarks and names across the United States and in more than 170 other countries, which it then licenses to the affiliated companies for specific, exclusive geographic service areas. It has affiliated plans in all 50 states, the District of Columbia, and Puerto Rico, as well as licensees offering plans in several foreign countries; it also participates in the nationwide health insurance program for employees of the United States federal government. The BCBSA manages communications between its members and the operating policies required to be a licensee of the trademarks. This permits each BCBSA company to offer nationwide insurance coverage even though it operates only in its designated service area.

Seventeenth Church of Christ, Scientist, built in 1968, is a modern style Christian Science church building located in The Loop at 55 East Wacker Drive, (at Wabash Avenue) in Chicago, Illinois in the United States. It was designed by noted Chicago-based architect Harry Weese, whose most famous work is the Washington Metro but who is remembered best as the architect who "shaped Chicago’s skyline and the way the city thought about everything from the lakefront to its treasure-trove of historical buildings."Built by Sumner Sollitt Construction Company of concrete in a circular design, the building has no windows in the interior amphitheater. Outside light comes through a skylight at the top of the oculus in the center of the conical roof. Pedestrian entrance to the building is via a bridge over a sunken garden, which Weese said "was for the benefit of the [subterranean] Sunday School, which didn't have any windows" but is lit through the garden by the light from the street level above. The semicircular auditorium which seats 764 is designed so that no seat is more than 54 feet from the Readers' Platform, which is the focal point of all Christian Science church auditoriums. An invisible sound reinforcement system with 350 hidden microphones allows those in attendance at the Wednesday evening testimonial meetings to give testimonies without having to leave their seats. Off street parking is provided by a subterranean parking garage. A feature of the lower lobby is an acrylic painting on canvas entitled "Millenium Garden: Psalm 23,” completed by Chicago artist Anne Farley Gaines in 2001. In 1996, Seventeenth Church received the 25 Year Award of the Chicago Chapter of the American Institute of Architects. In celebration of the 2018 Illinois Bicentennial, the Seventeenth Church of Christ, Scientist was selected as one of the Illinois 200 Great Places by the American Institute of Architects Illinois component (AIA Illinois).

The Crain Communications Building is a 39-story, 582 foot (177 m) skyscraper located at 150 North Michigan Avenue in downtown Chicago, Illinois. It was also known as the Smurfit–Stone Building and the Stone Container Building. While the building was originally going to be called "One Park Place," it opened as The Associates Center, named after the initial tenant of the building, the Associates Commercial Corp.Construction of the building began in 1983 and was completed in 1984. The building, noted for its unusually slanted facade, was designed by Sheldon Schlegman of A. Epstein and Sons. It has 39 floors of tenant space and the two spires at the top cover the main roof and serve as mechanical rooms for HVAC equipment.

Mather Tower (later Lincoln Tower, as designated on the Michigan–Wacker Historic District roster; now identified primarily by its address) is a Neo-Gothic, terra cotta-clad high-rise structure in Chicago, Illinois, United States. It is located at 75 East Wacker Drive in the downtown "loop" area, adjacent to the Chicago River. The 521-foot (159 m)-high building is sometimes called "The Inverted Spyglass" by Chicagoans due to its highly unusual design, an 18-story octagonal tower atop a more conventional 24-story rectangular "box." Briefly the tallest building in Chicago at the time of its completion in 1928, it remains the city's most slender high-rise structure at only 100 by 65 feet (30 by 20 m) at its base. The interior space within the upper octagonal spire contains the least square footage per floor of any Chicago skyscraper.It was designed by Herbert Hugh Riddle (1875–1939), the architect of the Chicago Theological Seminary, as headquarters for the Mather Stock Car Company, a builder of rail cars for transporting livestock. Its design was greatly influenced by the pioneering Chicago Zoning Ordinance of 1923, which placed no limit on the height of new buildings as long as the surface area of the structure's uppermost floor did not exceed 25% of its footprint. This resulted in a multitude of tall, slender, "setback" towers, of which the Mather is an extreme and unusual example. The top floor of the octagonal spire has only 280 square feet (26 m2) of floor space.Mather Company's founder, Alonzo Mather (a descendant of Cotton Mather) is said to be responsible for a number of the building's distinctive design features, including the octagonal tower. Initial plans called for construction of a second, identical building on North Michigan Avenue, behind the Mather and connected to it by a ground-floor arcade, but onset of the Great Depression in 1929 forced its cancellation.By the 1990s the building had fallen into significant disrepair. In 2000 the 4-story "cupola" at the top of the building was demolished because of structural deterioration and safety concerns, after chunks of terra cotta began falling from the facade. Damage was sufficiently extensive that consideration was given to dismantling the remaining 17 stories of the octagonal spire as well.In 2000 Masterworks Development Corporation purchased the structure and undertook a complete restoration. In November 2002, the final phase of the project was initiated when a helicopter lifted the steel framework for a new cupola from a river barge to the top of the tower.The lower, rectangular portion of the building currently houses the River Hotel, while the octagonal upper stories are occupied by a branch of the Club Quarters chain of membership corporate accommodations. Mather Tower was designated a Chicago Historic Landmark in 2001, and in 2006 it received a National Preservation Honor Award from the National Trust for Historic Preservation.

The Virgin Hotels Chicago (formerly Old Dearborn Bank Building or 203 North Wabash Avenue) is a historic building in the Loop community area of Chicago, Illinois, that has been converted from use as an office building to use as a hotel run via a mobile app-based business model. The 250-room hotel is the first of Richard Branson's Virgin Hotels brand boutique hotels geared toward the female business traveller.

The London Guarantee Building or London Guaranty & Accident Building is a historic 1923 commercial skyscraper whose primary occupant since 2016 is the LondonHouse Chicago Hotel. Formerly, for a time named the Stone Container Building, it is located near the Loop in Chicago, and is one of four 1920s skyscrapers that surround the Michigan Avenue Bridge (the others are the Wrigley Building, Tribune Tower and 333 North Michigan Avenue) and is a contributing property to the Michigan–Wacker Historic District. It stands on part of the former site of Fort Dearborn. The building was designated a Chicago Landmark on April 16, 1996.

Michigan Plaza is a two-tower office complex in the Chicago Loop area of Chicago, Illinois, United States. The complex is managed and leased by MB Real Estate.The complex consists of the 44-story 205 North Michigan Avenue and the 25-story 225 North Michigan Avenue and was designed by architect Fujikawa Johnson & Associates. The builders were inspired by the works of Ludwig Mies van der Rohe.

333 North Michigan is a skyscraper in the art deco style located in the Loop community area of Chicago, Illinois in the United States. Architecturally, it is noted for its dramatic upper-level setbacks that were inspired by the 1923 skyscraper zoning laws. Geographically, it is known as one of the four 1920s flanks of the Michigan Avenue Bridge (along with the Wrigley Building, Tribune Tower and the London Guarantee Building) that are contributing properties to the Michigan–Wacker Historic District, which is a U.S. Registered Historic District.Additionally, it is known as the geographic beneficiary of the jog in Michigan Avenue, which makes it visible along the Magnificent Mile as the building that seems to be in the middle of the road at the foot of this stretch of road (pictured at left). The building was designed by Holabird & Roche/Holabird & Root and completed in 1928. It is 396 feet (120.7 m) tall, and has 34 storeys. It was designated a Chicago Landmark on February 7, 1997. It is located on the short quarter mile stretch of Michigan Avenue between the Chicago Landmark Historic Michigan Boulevard District and the Magnificent Mile. The building is managed and leased by MB Real Estate. Designed by John Wellborn Root, Jr., the building's long and narrow footprint and towering structure are a tribute to Root's father John Wellborn Root's earlier Chicago Monadnock Building; Louis Sullivan's tall-building canon; and Eliel Saarinen's second-prize entry in the Tribune Tower design contest. The building was such a success that Holabird and Root took commercial residence there. The building's long and slender design optimized use of natural lighting. The building's interior represents Prohibition era modernism, especially its Art Deco Tavern club.The building is embellished by a polished marble base, ornamental bands, and reliefs depicting frontiersmen and Native Americans at Fort Dearborn, which partially occupied the site.

WCLM was a radio station operating on 101.9 FM in Chicago between 1957 and 1966. The station lost its broadcast license over several violations, the most notable of which was the use of its subsidiary communications authority (SCA) subcarrier facility to telecast the results of horse races on an additional audio channel.

Millennium Station (formerly Randolph Street Terminal; sometimes called Randolph Street station or Randolph/South Water Street station) is a major commuter rail terminal in the Loop (downtown), Chicago. It is the northern terminus of the Metra Electric District to Chicago's southern suburbs, and the western terminus of the South Shore Line to Gary and South Bend, Indiana. Located under Millennium Park, the terminal is a stub-end station and was established in the 1800s by the Illinois Central Railroad (IC) and has gone through several re-configurations. Most recently, it was rebuilt in the early 21st century and is owned by Metra through its operating arm, the Northeast Illinois Regional Commuter Railroad Corporation. Not counting commuters on the South Shore Line, over 18,000 people board Metra trains at Millennium Station each day. During peak periods, trains leave the terminal as frequently as twice a minute. It is the third-busiest train station in Chicago.