After a quick coffee and an ATM run, I stepped into the most famous building in town - Willis Tower (previously known as Sears Tower). I was headed to the SkyDeck, a precariously perched glass box on the 103rd floor of the tower!
From its observation deck you can enjoy panoramic views of four states. A trip to the top is a must for first time visitors. For a truly spectacular sight time your visit to coincide with sunset.