Willis Tower isn’t just for grown-ups. There are so many fun facts about Chicago’s tallest building that kids are sure to enjoy:

• Willis Tower opened in 1973 and took 2,000 workers three years to build. It took the Ancient Egyptians 20 years to build the pyramids at Giza.
• The building occupies 4.5 million gross square feet (418,064 gross square meters) of floor space, or roughly 101 football fields.
• On a clear day, you can see four states: Illinois, Indiana, Wisconsin and Michigan. Visibility from the Skydeck is approximately 40-50 miles (65-80 kilometers).
• 6 roof-mounted robotic window washing machines clean all 16,100 windows.

Teacher's Guide

Make your next field trip to the Windy City a breeze: Be ready to answer the most inquiring minds. You’ll find everything you need in the comprehensive guide, "The Hows, Whats and Wows of Willis Tower - A Guide For Teachers."

The Ledge Kids guide

Quizes and more for the little ones or just the young at heart.