When I was in Chicago one of the things that I wanted to do was see the city from one of the tallest skyscrapers there. The tallest building in the city is the Willis Tower (formerly the Sears tower), but all I read was it was a tourist trap. Next is the Trump International and the Aon Center, both of which do not have observation decks. That brings us to the John Hancock Center, which is where I ended up.