860-880 Lake Shore Drive

Today there doesn't seem to be anything radical about these towers but when they were completed in 1951, they constrasted sharply with the contemporary brick and concrete buildings. Not only was the steel structure used as ornament, for the first time apartments were built with glass walls, covering the whole exterior.
Nonetheless they became an immediate commercial and critical success. The towers were soon followed by many other glass and steel towers, such as the Lever House in New York and the Inland Steel Building in Chicago.

Mies van der Rohe had previously designed glass and steel buildings, among them plans for a department store in Berlin in 1928. In 1948 he made two versions of a project in Chicago, the 21 stories 'Promentory Apartments', one of them with a concrete and brick exterior, the other one with a glass curtain. Eventually the concrete version was used, but the glass and steel version was eventually applied on the Lake Shore Drive Apartments, finally realising Mies van der Rohes decades old vision of modern high-rise buildings.

The 860-880 Lake Shore Drive Apartments were deemed Chicago Landmarks in 1996, the first building by van der Rohe to receive that status. You get the best view of the buildings from Michigan Lake's shore. Mind that the apartments buildings are private and can thus not be visited.