When I took this shot in 1975, the John Hancock center was just five years old. At 1506 feet, it was one of the tallest buildings in the world. But within a year, it wouldn’t even be the tallest building in Chicago. It’s cross-town rival, the Sears Tower (now Willis Tower) was nearing completion. However, it still boasts that it has the nation’s fastest elevators. They can take you to the observatory in 39 seconds.