The Willis Tower is one of the tallest buildings in the United States, standing at 110 stories and 1,730 ft high. It was designed by a group, an architectural company named Skidmore, Owings and Merrill. It finished construction in 1973 and was originally called Sears Tower, as it was to become office space for Sears employees. The name was changed in 2009 after an insurance broker firm.
I visited Willis Tower around Thanksgiving of 2017, and it was a phenomenal building. I felt that it resembled a large black battery. The two antennas on the top of the building were quite odd to me, but it was shocking to find out that they were each around 300 feet long. It just put into perspective how massive the building was as a whole. For being so tall and domineering, I feel like Willis Tower is much more aesthetically pleasing than buildings like the Empire State Building or the Aon Center. I have visited Chicago twice now, and I can confidently say that this building sticks out like a black, concrete sore thumb. The second picture that I have added is actually the view from the Skydeck at the top!