Chapters: 2:32 - How the Sears Catalogue lead to the Sears tower (A) 5:16 - How the Sears Tower Transformed the loop (A) 7:45 - How was the Sears Tower designed? 9:32 - The Sears Tower changed Chicagos zoning rules 10:08 - How long did the Sears Tower take to build? (The construction process) 12:22 - How many people died while building the Sears Tower? 13:05 - How tall is the Sears Tower? 13:34 - What happened to Sears? 14:24 - Why is Willis Tower Not Sears Tower? 15:07 - How many elevators does the Sears Tower have? 16:50 - Does Sears Tower have an observation deck? 18:30 - Has anyone climbed the Sears Tower? 19:39 - Whats in the basement of Sears Tower? 21:20 - Why Sears Tower is Chicagos best building
The Willis Tower (originally the Sears Tower) is a 108-story, 1,451-foot (442.3 m) skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM), it opened in 1973 as the worlds tallest building, a title that it held for nearly 25 years. It is currently the third-tallest building in the Western Hemisphere, as well as the 23rd-tallest in the world. Each year, more than 1.7 million people visit the Skydeck observation deck, the highest in the United States, making it one of Chicagos most popular tourist destinations. The building occupies a site bounded by Franklin Street, Jackson Boulevard, Wacker Drive, and Adams Street. Graham and Khan designed the building as nine square tubes, clustered in a 3×3 matrix; seven of the tubes set back at upper floors. The tower has 108 stories as counted by standard methods, though the buildings owners count the main roof as 109 and the mechanical penthouse roof as 110.The facade is made of anodized aluminum and black glass. The base of the building contains a retail complex known as the Catalog. The lower half of the tower was originally occupied by retail company Sears, which had its headquarters there until 1994, while the upper stories were rented out. The structure was known as the Sears Tower from its construction until the naming rights were included in a 2009 lease with the Willis Group. Local area residents still refer to the building by its old name. As of April 2018, the buildings largest tenant is United Airlines, which occupies around 20 floors. Other major tenants include the buildings namesake Willis Towers Watson and law firms Schiff Hardin and Seyfarth Shaw. Morgan Stanley became the buildings fourth-largest tenant in 2017.
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