This is a photo of the working sundial outside of the Adler Planetarium with the Chicago skyline in the back.  The sundial was designed in 1980 by Henry Moore and is named “Man Enters the Cosmos”.  Here is a little more information on the sundial:

This specific design is known as an equatorial sundial, the most accurate geometric shape of a sundial that has been used since the Renaissance. It rests on a golden patina, which, along with the sculpture’s name, symbolizes the “golden years of astronomy” from 1930 to 1980 – the time the Adler opened to the time the sculpture was installed. This 50 year period saw remarkable advancements in astronomy, technology, and space exploration, especially with the Apollo XI Moon landing in 1969.

    ~Informaiton from Here.