There’s a sign on 56th ST for place then no directions when you enter the complex. Suite 110 is on the East side of building where there is no parking lot. Best to drive to the South (Main) entrance and use the restroom then drive to the West side and park on the NE corner of building then walk on the East side of building. The first suite has a sign that says keep going around for Prometrics. Inside, it’s a long and windy walk to the restroom so use before you take your 4-hour test.