If you look really closely in the satellite view of Google maps, you can see where it is.
Basically, the midrise building [[not the tower) is built in the shape of a capital letter “H” if looking at down from the sky. The atrium is located in the upper gap of the “H”. The elevators are in the horizontal part of the “H”. Thus, the elevators are for the midrise, and the atrium runs north-south with the elevators shown on the south side of the atrium.