I usually rotate between Chicago Skydeck and the John Hancock building when getting cityscapes while in Chicago. One of the cool things about the Skydeck is that they have this glass box called the Ledge which extends 4.3 feet from the Skydeck which is 1,353 feet from ground level…
It’s pretty awesome for getting photos, but feels really weird because it seems like you are walking out into the open space of the sky. The above photo is not from the Ledge, but from the North side of the building looking towards Trump Tower and the John Hancock building. For more information about the Skydeck, visit this link.