Extrusion and Intrusion
Insides and outsides, looking in and looking out. It can’t be a coincidence that the FBI building looms out over DC like that, literally built to make you feel like someone’s standing over you looking down (and since the entrances are closed off post-911 style, you’re reminded that it’s a one way interaction).
Whereas a bit of parking, hidden away underground, has an almost occult appearance. Is it hiding place? Or is it a dangerous back alley? Shielded by the looming buildings whose height makes them disappear from view. What does it mean to step off the street?