What is the Willis Tower?
Q: What is the Willis Tower?
A: The Willis Tower is a 108-story, 1,450-foot (442.1 m) skyscraper in Chicago, Illinois.
Q: When was it completed?
A: The Willis Tower was completed in 1973.
Q: How tall is it?
A: The Willis Tower stands at 1,450 feet (442.1 m).
Q: Who designed the tower?
A: The Willis Tower was designed by architect Fazlur Khan.
Q: What year did it become the tallest building in the world?
A: The Willis Tower became the tallest building in the world when it finished construction in 1973 and held that title for 25 years until Petronas Towers were built in Malaysia.
Q: What year did One World Trade Center surpass it as the tallest building in the Western Hemisphere?
A: One World Trade Center surpassed the Willis Tower as the tallest building in the Western Hemisphere when it opened in 2013.
Q: What are some of its major tenants?
A: Major tenants of the Willis Tower include United Airlines, Schiff Hardin, Seyfarth Shaw and Morgan Stanley.
