The IDS Center is an office skyscraper located at 80 South 8th Street in Minneapolis, Minnesota. Completed in 1973, it is the tallest building in Minneapolis, and the tallest building in the state at a height of . It originally stood , though a garage for window washing equipment was added between 1978 and 1979. The structure rises to when including communications spires on the roof, indisputably the highest points in the city. The IDS was constructed as the headquarters of Investors Diversified Services, Inc.—now Ameriprise Financial. It also housed the headquarters of Dayton Hudson Corporation (now Target Corporation) from 1972 until 2001.
The complex consists of five parts: the 57-story IDS Tower itself at 8th Street & Nicollet Mall, an eight-story annex building along Marquette Avenue, the 19-story Marquette Hotel at 7th Street & Marquette Avenue, and a two-story retail building that was originally dominated by Woolworth's. These four buildings are joined by the seven-story Crystal Court.
The 57-story IDS became the tallest skyscraper in Minneapolis when it surpassed the height of the 32-story Foshay Tower in 1972, ending that building's 43-year reign over the city skyline. Construction of the building was followed with great interest, and the topping-off ceremony was a major civic event in the city. In addition to being taller, IDS occupies a much larger footprint than the obelisk-like Foshay. It was the 16th tallest building in the world on completion, and the third tallest constructed that year.
Design and environment
A lobby and shopping area at the bottom of the tower is known as the Crystal Court and provides skyway connections between the tower and four adjacent blocks. The Concourse level is occupied by Globe College and University; originally this floor was an extension of the Crystal Court retail space and included a single-screen movie theater and shops. The building had a 51st floor observation deck until 1984; thousands of people came for one last visit on December 31, 1983. This floor is now office space. The 50th floor contained an east-facing "Orion Room" restaurant, a north-facing bar and cocktail lounge, a private south-facing dining club ("Tower Club"). The west-facing "University of Minnesota Alumni Club" closed to the public in 1994. Today, the entire 50th floor consists of four large ballrooms with a single central kitchen. The rooms are collectively known as "Windows on Minnesota," and they serve as banquet space for the Marquette Hotel.
Because of the IDS Center's peculiar and unique stepback design, termed "zogs" by its architect, Philip Johnson, each floor has up to 32 corner offices. The area of Nicollet Mall in front of the IDS Center is familiar to television viewers: the character of Mary Richards on The Mary Tyler Moore Show was seen on Nicollet Mall looking at an IDS shop in the opening montage of the show. Across South 7th Street from the IDS was Donaldson's Department Store, in front of which she tossed her hat in the air at the end of the opening sequence. A statue commemorating that shot stands approximately at the camera location of the view, created and maintained by TVLand. She is also seen in the show opening dining with then-husband Grant Tinker at what is now the terrace of Jolliet House on the hotel's third floor, overlooking the Crystal Court. Until a renovation in 2017, diners could sit at the "Mary Tyler Moore Table."
The IDS Tower has an eight-story annex extending along the Marquette Avenue side of the building. This building is a true annex; the fourth through eighth floors can only be reached through the IDS Tower elevators, and the third floor can only be reached through the Marquette Hotel elevators.
The building has not been without structural problems. Since soon after its construction, the Crystal Court had issues with water leaking through the roof after rain or snow due to effects of Minnesota's extreme freeze-thaw cycle. There are also frequent problems in the winter when ice falls from the tower and onto the court's glass roof panels, often breaking through. Occasionally the court will be roped off to prevent injury to the public. The Center and Crystal Court were devastated by a summer wind storm in June 1979 that led to much glass breakage. The entire Crystal Court was sealed off by plywood barriers while this was repaired.