![]() Weight - 222,500 tons or 445 million poundsīuilding exterior - black aluminum and bronze-tinted glassĪrchitectural firm - Skidmore, Owings & Merrillġ973 - Construction is completed and the building opens to the public.ġ994 - Sears, Roebuck & Company sells the building to reduce its debt.ġ996 - The Petronas Twin Towers surpass the Sears Tower in height to become the world’s tallest buildings at 1,483 feet each. Lowest level - 43 feet below Franklin St.īuilding size - 4.5 million gross square feet Height of Skydeck/103rd floor - 1,353 feet Height with the two antennas - 1,730 feet Structural height - 1,450 feet or 110 floors One of the first major buildings to have a sprinkler system. Security personnel monitor the building 24 hours a day. Security cameras are located in all public areas of the building. Some 25,000 people enter the skyscraper every day.Ībout 1.7 million people go up to the Skydeck visitors’ observation deck on the 103rd floor each year. With clear weather, four states are viewable up to 50 miles away: Michigan, Indiana, Illinois and Wisconsin. The Sears Tower was the world’s tallest building until 1996, when it was surpassed by the Petronas Twin Towers in Kuala Lumpur, Malaysia. Now Open: Convene, Market Creations, Joe and the Juice, Tortazo, Brown Bag Seafood, Do-Rite Donuts & Chicken, Fifth Third Bank, Shake Shack, Sushi-San, Sweetgreen and StarbucksĬoming Soon: Urbanspace, Foxtrot, Color Factory, Kindling and more!Ĭheck out more information on all the exciting new dining and shopping options here.Here’s some background information about Willis Tower, formerly the Sears Tower, located in Chicago. Catalog is an evolving, five-level urban destination, featuring new dining, specialty retail and entertainment options (full completion in Summer 2020). With glass on the ceiling, floor, and all sides, it is truly, an unforgettable experience.Ĭomplete your Skydeck experience by exploring Catalog at Willis Tower, accessible via the new Jackson Boulevard entrance. In 2009, Skydeck Chicago opened its newest attraction, The Ledge, 4 glass boxes that extend 4.3 feet outside the Tower and stand 1,353 feet above Wacker Drive. The elevators within the building are among some of the fastest in the world, operating as fast as 1,600 feet per minute. On a clear day, you can see over 50 miles in each direction and see four states. Approximately 1.7 million tourists visit Skydeck Chicago every year. Skydeck Chicago is the observation deck on the 103rd floor of the building. In 1988, Sears Roebuck and Company sold and moved out of the building, but the Sears Tower name remained until 2009 when the building was renamed after the Willis Group, a London- based global insurance broker. The last beam put in place was signed by 12,000 construction workers, Sears employees and Chicagoans. Within the building, there are 25 miles of plumbing, 1500 miles of electric wiring, 80 miles of elevator cable, 796 restroom faucets, and more than 145,000 light fixtures. The builders used enough concrete to make an eight- lane highway five miles long. Taking three years to complete, Sears Tower was finished in May 1973. In August, 1970 ground was broken for the beginning of construction. Fazlur Khan, the structural engineer, designed the “bundled tube” design that handled both wind and gravity. Architects Skidmore, Owings and Merrill were commissioned to design what would become one of the largest office buildings in the world. They decided they needed one large office space for their many employees. In 1969, Sears Roebuck and Company was the largest retailer in the world, with about 350,000 employees. Willis Tower is not only one of the tallest buildings in the world, it is also a magnificent icon, impossible to miss within Chicago’s skyline. Willis Tower (formerly known as the Sears Tower) is a 110 story building in the heart of Chicago’s downtown.
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