Chicago Board of Trade Building of the current building is abundant, with postcards of panoramic scenes from LaSalle Street, the clock, and lighted upper decks having been produced for decades. In views from the Museum Campus, the building's crown is framed by the middle floors of the taller Sears Tower in the background. Photographer Andreas Gursky has used the location for still life prints such as 1997's "Chicago Board of Trade, I" and 1999's "Chicago Board of Trade, II". A photograph of the exterior, from the "Museum" series by Thomas Struth, is in the collection of the Metropolitan Museum of Art in New York City.
Willis Tower unfinished World Trade Center to become the world's tallest building. The height was restricted by a limit imposed by the Federal Aviation Administration (FAA) to protect air traffic. The financing of the tower was provided by the Sears company. It was topped with two antennas to permit local television and radio broadcasts. Sears and the City of Chicago approved the design, and the first steel was put in place in April 1971. The structure was completed in May 1973. The construction cost about US$150 million at the time, equivalent to $ million in 2019. By comparison, Taipei 101, built in