Completed four years after architect Mies van der Rohe‘s passing, the IBM Building became one of the cities most prestigious addresses. A pure symbol of the architecture of the time, the almost 700 foot tall rectangle sits on a raised plinth that helps it to maintain a uniform height given the unevenness of the site; State Street to the structure’s west inclines steeply.

More on the IBM Building, also known as 330 North Wabash, after the break.