Bluebulb Projects' The Measure of Things presents:
750 is about one-third the number of Steps in the Sears Tower.
In other words, it's 0.35560 times the count of Steps in the Sears Tower, and the count of Steps in the Sears Tower is 2.8120 times that amount.
(a.k.a. Willis Tower) (Chicago, Illinois) (steps per stairwell)