Part of the problem is that modern buildings change their names as corporate clients change and hard to include in lists for that reason. For example, I grew up

Part of the problem is that modern buildings change their names as corporate clients change and hard to include in lists for that reason. For example, I grew up visiting Chicago and marveling at the wonderful Sears Tower and John Hancock Center. These days these are known as the Willis Tower and 875 North Michigan Avenue.