One of the most recognized features of the Chicago skyline is what most people call “The Diamond Building” because of its unique, slanted, diamond-shaped top. Although the 582 foot skyscraper has had several names since it was built in 1984 – such as the Smurfit–Stone Building and the Stone Container Building – it is now called the Crain Communications Building since it became the company’s headquarters in 2012. The Trump International Hotel and Tower stands in the background.