Answer:
Carlton: 731 feet tall
Burj Khalifa: 2716 feet tall
Q1 Tower: 1059 feet tall
The Shard: 1017 feet tall
Willis Tower: 1450 feet tall
Gran Torre: 984 feet tall
(note: this is all rounded up answers)
Work:
223 x 3.28 = 731
828 x 3.28 = 2716
323 x 3.28 = 1059
310 x 3.28 = 1017
442 x 3.28 = 1450
300 x 3.28 = 984
