Q2. What was the original name of the Willis Tower?Trump TowerSears TowerJohn Hancock CenterEmpire State Building
Q4. What is the height of the Willis Tower?1,450 feet (442 meters)1,368 feet (417 meters)1,454 feet (443 meters)1,776 feet (541 meters)
Q5. Where is the Willis Tower located?Chicago, IllinoisLos Angeles, CaliforniaNew York City, New YorkHouston, Texas
Q7. How much steel was used in the construction of the Willis Tower?150,000 tons50,000 tons76,000 tons100,000 tons
Q10. What was the cost of constructing the Willis Tower?$200 million$150 million$100 million$250 million
Q11. Who purchased the Willis Tower in 2009?Vornado Realty TrustBlackstone GroupBrookfield Office PropertiesEquity Office Properties
Q13. What is the nickname for the Willis Tower?The Cloud ScraperThe Big BlackThe Windy TowerThe Steel Giant
Q15. How many annual visitors does the Skydeck attract?Over 1 millionOver 3 millionOver 500,000Over 2 million
