The Willis Tower in Chicago is the second tallest building in the Western Hemisphere. It stands 1,450 feet high and 110 stories tall. The Willis Tower was completed in 1973 and took three years and 2,000 workers to build. It has the highest public viewing area in the U.S. at 1,353 feet above the ground.

My family and I went to Chicago when I was in middle school. One of the biggest things I wanted to do was go up the Willis Tower to the Ledge of the Sky Deck. It is basically a glass box that sticks out from the building on the 103rd floor. The elevator ride to the 103rd floor was even awesome; it was incredibly fast. Let me start off by saying that I am not afraid of heights. I was not scared to walk out onto the Ledge and was fine UNTIL I looked down. It was absolutely terrifying and awesome at the same time. It was a perfect day, no clouds and we could see so far. It was an experience I will never forget.

https://theskydeck.com/for-kids/fun-facts/