High Quality Content by WIKIPEDIA articles! The IDS Center (80 S. 8th St.) in Minneapolis is the tallest building in Minnesota at 792 feet (241.4 m). It originally stood 775 feet 6 inches (236.4 m), though a 16-foot (4.9 m) garage for window washing equipment was added in 1978 or 1979. The structure rises to 910 feet (277.4 m) 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.