Chicago tumultuous 1968 Democratic National Convention, which featured physical confrontations both inside and outside the convention hall, with anti-war protesters, journalists and bystanders being beaten by police. Major construction projects, including the Sears Tower (now known as the Willis Tower, which in 1974 became the world's tallest building), University of Illinois at Chicago, McCormick Place, and O'Hare International Airport, were undertaken during Richard J. Daley's tenure. In 1979, Jane Byrne, the city's first female mayor, was elected. She was notable for temporarily moving into the crime-ridden Cabrini-Green housing project and for leading Chicago's school system out of a financial crisis. In
Center City Tower (Philadelphia) with Comcast Corporation, Philadelphia's most high-profile corporation, in mind. Such a rumor would have been killed on January 5, 2005, the day Comcast Center was officially launched. Center City Tower (Philadelphia) Center City Tower was the working name of a formerly proposed skyscraper in downtown Philadelphia. Designed and proposed by the firm now known as KlingStubbins (designers of Philadelphia's Penn Center and Bell Atlantic Tower), the building would have risen to a height of 1,050 feet (320 m) and 75 stories, making it the tallest building in The United States outside New York and Chicago, surpassing the height of the