IDS Center, Minneapolis

The IDS Center is the tallest building in the state of Minnesota at 792 feet. Opened in 1974 as the IDS Centre, it stood 775 feet 6 inches, though a 16-foot garage for window washing equipment was added at a later date. The IDS was constructed as the headquarters of Investors Diversified Services, Inc.—now Ameriprise Financial. It also housed the headquarters for the Target stores division of Dayton Hudson Corporation (now Target Corporation) from 1972 until Target moved to its own headquarters building in 2002.

The 57-story IDS became the tallest skyscraper in Minneapolis when it surpassed the height of the 30-story Foshay Tower in 1972 while under construction, ending that building's 43-year reign over the city skyline. 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 the rest of downtown Minneapolis. Because of the IDS Center's peculiar and unique stepback design, termed "zogs" by its architect, Philip Johnson, each floor has a maximum of 32 corner offices. The building was purchased by the John Buck Company in December 2004 for US$225 million. Just over a year later in January 2006, the company began looking for new buyers. In August 2006 it was sold to The Inland Real Estate Group of Companies, Inc., for approximately $277 million. The IDS has 1.4 million square feet (120,000 m²) of office and retail space.