So - what used to be the sears tower is now some weirdly named tower.
But - the view is still the same and they have added glass floors. You need to visit this place at once time on your visit(s) to chicago. The price is steep if you have a large family, but a couple can get in there for under $40.
The view is just so amazing and well worth the wait - if you get there early and there is no line. I wouldn't wait 45 minutes for this, but that's just me.
You can see every single direction of chiagoland from here - and some of it is amazing!