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It's still the Sears Tower to me!💁 Here's some fun facts I found on the Sears Tower A.K.A. Willis Tower🤷

HISTORY & INSPIRATION

The original vision for Willis Tower came to life in 1969 when Sears Roebuck and Company decided it needed a central office space for its 350,000 employees.

Willis Tower’s was designed by architectural firm Skidmore, Owings and Merrill.

After breaking ground in 1970, it took three years to complete the tower.

2,000 construction workers took part in building Willis Tower.

The building features a steel-framed bundled-tube construction method.

Construction was completed in May 1973.

Willis Tower was the world’s tallest building until 1998.

After 18 years, Sears Roebuck and Company sold the tower and moved out of the building.

In 2009 the building was renamed Willis Tower after the Willis Group Holdings, the global insurance broker who calls the Tower its Midwest home.

Willis Tower was purchased by Blackstone in 2015 for $1.3 billion.

SKYDECK & THE LEDGE

Skydeck opened in 1974 and attracts more than 1.7 million visitors annually.

In July 2009, U.S. Equities Realty led the design and construction of a multi-million-dollar renovation of Skydeck Chicago.

With the renovation of Skydeck came The Ledge, a series of windows that extend from the building offering views straight down over the city of Chicago.

Inspiration for The Ledge came from hundreds of forehead prints left behind on the Skydeck windows each week as seen in the memorable scene from Ferris Bueller’s Day off.

The ledge is 1,353 feet and 103 stories up.

Skydeck is the highest observation deck in the United States.

The Ledge is made of three layers of half-inch thick glass laminated into one seamless unit.

The Ledge is built to withstand four tons of pressure and can hold 10,000 lbs.

Each Ledge box has “heat tracing” to melt snow off.

The boxes retract into the building for easy cleaning and maintenance.

On a clear day, views can span 50 miles and four states: Illinois, Indiana, Wisconsin and Michigan.

Guests can enjoy interactive and educational attractions that highlight the iconic building and celebrate Chicago’s sports, architecture, history, food, music and people.

FAST FACTS BY THE NUMBERS

12th tallest building in the world

2nd tallest building in North American/Western Hemisphere

1,450 feet high (443 meters) and 110 stories tall

1,730 feet high (520 meters) including the building’s twin antennae

4.56 million gross square feet = 101 football fields

76,000 tons of steel

The combined weight of the building is 222,500 tons

Average sway is approximately 6 inches from true center

The tower has 16,100 bronze-tinted windows

25,000 miles of electrical cable

25 miles of plumbing

80 miles of elevator cable

145,000 light fixtures

43,000 miles of telephone cable

Cost more than $175 million to build

104 elevators moving 1,200 feet per minute

More than 16,000 square feet of conference rooms

99th floor event space

3 entrances

WILLIS TOWER TODAY

Willis Tower is owned by Blackstone and managed by EQ Office.  

The tower is home to more than 100 businesses including law, insurance, transportation, financial companies and more.

Radio and television stations are broadcast from Willis Tower’s rooftop.

15,000 people work at Willis Tower each day, not counting the thousands of building and Skydeck visitors.

12 million people pass by and through Willis Tower each year.  

Willis Tower contains approximately 4.56 million gross square feet which would cover 105 acres if spread across one level, the equivalent of 16 city blocks in Chicago or 101 football fields.  

Willis Tower has a rentable area of 3.8 million square feet.

Each floor of the building is divided into 75-foot column free squares, or “mega-modules” which provide maximum planning, flexibility and efficiency.

Some of the finest materials like travertine, stainless steel, granite and other decorative features are used throughout the buildings common areas to highlight the property’s prestige.

In 2017, 125,000 square feet of new amenity space including ‘Tower House’ and ‘Altitude’, were built exclusively for Willis Tower tenants.

Tower House is located on the 33rd and 34th floors featuring a bar, café, conference center and 30,000 square foot fitness center called TONE.

Altitude is located on the 66th and 67th floors featuring a café, relaxing lounge seating, informal meeting spaces, and breathtaking views of Chicago’s lakefront.