Staring up at the two tower cranes atop Streeterville’s One Bennett Park.

Maybe file this one in the “not surprising news” column, because if there’s one thing you can count on with 69-story towers, it’s that they’ll grow high.

One Bennett Park continues to do just that in Streeterville. How do I know? There are two tell-tale signs of tall buildings. First, the more it hurts your neck to see the top, the taller they are. Second, if most of your progress photos have to be in portrait mode instead of landscape, then you’re looking at a relatively tall building. It’s science.