What is the uncommon name for the Chicago tower for which Jaros, Baum, & Bolles is best known?
Willis Tower The Willis Tower, built as and still commonly referred to as the Sears Tower, is a 110-story, 442.1 m skyscraper in Chicago, Illinois, United States. At completion in 1973, it surpassed the World Trade Center towers in New York to become the tallest building in the world, a title it held for nearly 25 years and remained the tallest building in the Western Hemisphere until 2014 and the completion of a new building at the World Trade Center site. The building is considered a seminal achievement for its architect Fazlur Rahman Khan. The Willis Tower is the second-tallest building in the United States and the 16th-tallest in the world. More than one million people visit its observation deck each year, making it one of Chicago's most popular tourist destinations. The structure was renamed in 2009 by the Willis Group as part of its lease on a portion of the tower's space.
860–880 Lake Shore Drive Apartments 860–880 Lake Shore Drive is a twin pair of glass-and-steel apartment towers on N. Lake Shore Drive along Lake Michigan in the Streeterville neighborhood of Chicago, Illinois. Construction began in 1949 and the project was completed in 1951. The towers were added to the National Register of Historic Places on August 28, 1980, and were designated as Chicago Landmarks on June 10, 1996. The 26 floor, 254 ft (82 m) tall towers were designed by the architect Ludwig Mies van der Rohe, and dubbed the "Glass House" apartments. Construction was by the Chicago real estate developer Herbert Greenwald, and the Sumner S. Sollitt Company. The design principles, first expressed in the 1921 Friedrichstrasse Skyscraper competition in Berlin and built thirty years later in 860–880 Lake Shore Drive, were copied extensively and are now considered characteristic of the modern International Style as well as essential for the development of modern High-tech architecture.